Referencias

• [1] ↑ The Morning Journal: MADE IN OHIO: Elyria's RIDGID tools used far and wide (with videos) By KATE SNYDER ksnyder@MorningJournal.com Published: Sunday, August 28, 2011 http://www.morningjournal.com/articles/2011/08/28/business/doc4e57b4db9adc5703928453.txt.: http://www.morningjournal.com/articles/2011/08/28/business/doc4e57b4db9adc5703928453.txt
• [2] ↑ RIDGID Your Success is our Business http://www.ridgid.com/Tools/About-Ridge-Tool/.: http://www.ridgid.com/Tools/About-Ridge-Tool/
• [3] ↑ Power Tools Pro: Ridgid Power Tools Made to Withstand the Harsh Demands of the Professional. http://www.power-tool-pro.com/ridgid-power-tools.html.: http://www.power-tool-pro.com/ridgid-power-tools.html
• [4] ↑ Estudio: Herramienta Manual Luis María Ansoleaga 2000 PGS: 58 http://www.icex.es/servicios/documentacion/documentoselaborados/icex/pdfs/vene-est-herr-mano.pdf.: http://www.icex.es/servicios/documentacion/documentoselaborados/icex/pdfs/vene-est-herr-mano.pdf
• [5] ↑ Hí-Ca: RidGid http://www.grupohica.com.mx/Makita/HerramientasRidGid/tabid/112/Default.aspx Archivado el 28 de mayo de 2009 en Wayback Machine.: http://www.grupohica.com.mx/Makita/HerramientasRidGid/tabid/112/Default.aspx
• [6] ↑ Ferrefren: Historial de las marcas http://www.actiweb.es/ferrefren/mayor_calidadmejores_marcas.html Archivado el 6 de febrero de 2011 en Wayback Machine.: http://www.actiweb.es/ferrefren/mayor_calidadmejores_marcas.html
• [7] ↑ Nexcon Perú S.A.C. RidGid http://www.nexcomperu.com/productos_herramientas_ridgid.htm Archivado el 28 de abril de 2012 en Wayback Machine.: http://www.nexcomperu.com/productos_herramientas_ridgid.htm
• [8] ↑ Hoffman Group: Los 500 mejores fabricantes de herramientas de calidad a nivel mundial. http://www.hoffmann-group.com/es/expertos-en-distribucion/los-500-fabricantes-principales.html Archivado el 15 de septiembre de 2011 en Wayback Machine.: http://www.hoffmann-group.com/es/expertos-en-distribucion/los-500-fabricantes-principales.html
• [9] ↑ C. Adolfo Cassareto, S.A.: Ridgid http://www.adolfocasaretto.com/contenidos/ridgid.html Archivado el 14 de septiembre de 2011 en Wayback Machine.: http://www.adolfocasaretto.com/contenidos/ridgid.html
• [10] ↑ About.com Woodworking: Profile of Ridgid Tools by Chris Baylor October 28, 2009. http://woodworking.about.com/b/2009/10/28/profile-of-ridgid-tools.htm Archivado el 19 de noviembre de 2012 en Wayback Machine.: http://woodworking.about.com/b/2009/10/28/profile-of-ridgid-tools.htm
• [11] ↑ Patricia Ryaby Backer. Industrialization of American Society. «Copia archivada». Archivado desde el original el 19 de septiembre de 2010. Consultado el 17 de julio de 2011.: https://web.archive.org/web/20100919085515/http://www.engr.sjsu.edu/pabacker/industrial.htm
• [12] ↑ Academic American History: The War between Capital and Labor. http://www.academicamerican.com/recongildedage/topics/gildedage2.html.: http://www.academicamerican.com/recongildedage/topics/gildedage2.html
• [13] ↑ History Of The United States Of America, Part Five http://history-world.org/history_of_the_united_states5.htm Archivado el 11 de octubre de 2011 en Wayback Machine.: http://history-world.org/history_of_the_united_states5.htm
• [14] ↑ Emerson Electric Company http://en.wikipedia.org/wiki/Emerson_Electric_Company.: https://en.wikipedia.org/wiki/Emerson_Electric_Company
• [15] ↑ About.com Woodworking: Profile of Ridgid Tools by Chris Baylor 2011 http://woodworking.about.com/od/manufacturers/p/RidgidTools.htm Archivado el 25 de febrero de 2014 en Wayback Machine.: http://woodworking.about.com/od/manufacturers/p/RidgidTools.htm
• [16] ↑ Emerson: The Ridgid tool solution for your industriy and project http://www.emerson-ap.com/eng/brands/eb_pt_dp.html Archivado el 3 de septiembre de 2009 en Wayback Machine.: http://www.emerson-ap.com/eng/brands/eb_pt_dp.html
• [17] ↑ References for Business comapany history index: EMERSON ELECTRIC CO. - Company Profile, Information, Business Description, History, Background Information on EMERSON ELECTRIC CO. http://www.referenceforbusiness.com/history2/57/EMERSON-ELECTRIC-CO.html.: http://www.referenceforbusiness.com/history2/57/EMERSON-ELECTRIC-CO.html
• [18] ↑ Refrinoticias.com Computadoras portátiles personalizadas herramienta indispensable para los profesionales de la industria HVACR http://refrinoticias.com/?p=651.: http://refrinoticias.com/?p=651
• [19] ↑ Answers.com RIDGID: http://www.answers.com/topic/ridgid.: http://www.answers.com/topic/ridgid
• [20] ↑ Shapleigh Hardware Company, St. Louis 2-25-59. Section 4. Quit Index http://www.roseantiquetools.com/sitebuildercontent/sitebuilderfiles/plierspipetoolssec.4.1.pdf Archivado el 19 de octubre de 2011 en Wayback Machine. In: Rose Antique Tools Keen Kutter http://www.roseantiquetools.com/id42.html.: http://www.roseantiquetools.com/sitebuildercontent/sitebuilderfiles/plierspipetoolssec.4.1.pdf
• [21] ↑ Calendario RIDGID http://www.ridgid.com/Tools/Calendar/ES/index.htm Archivado el 13 de octubre de 2011 en Wayback Machine.: http://www.ridgid.com/Tools/Calendar/ES/index.htm
• [22] ↑ Media: George Petty’s Ridgid Tools Calendars http://www.animationarchive.org/?p=149.: http://www.animationarchive.org/?p=149