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Howard Robard Hughes Sr. (September 9, 1869 – January 14, 1924) was an American businessman and inventor who founded the Hughes Tool Company. He invented the "Sharp–Hughes" two-cone rotary drill bit during the Texas Oil Boom.
- Howard Robard Hughes Sr.
Howard Robard Hughes Sr. (* 9. September 1869 in Lancaster,...
- English
Howard Robard Hughes Jr. (December 24, 1905 – April 5, 1976)...
- Howard Robard Hughes Sr.
Howard Robard Hughes, Jr. (* 24. Dezember 1905 in Humble oder Houston, beides Texas; † 5. April 1976 in einem Flugzeug über Texas) war ein US-amerikanischer Unternehmer, Filmproduzent, Regisseur und Luftfahrtpionier.
Howard Robard Hughes Sr. was an American businessman and inventor who founded the Hughes Tool Company. He invented the "Sharp–Hughes" two-cone rotary drill bit during the Texas Oil Boom. Hughes was the father and namesake of Howard Hughes the American business tycoon and founder of Hughes Aircraft.
The first roller cone patent was for the rotary rock bit and was issued to American businessman and inventor Howard Hughes Sr. in 1909. It consisted of two interlocking cones. American businessman Walter Benona Sharp worked very closely with Hughes in developing the rock bit.
Howard Robard Hughes Sr. (né le 9 septembre 1869 à Lancaster et mort le 14 janvier 1924 à Houston) est un homme d'affaires et inventeur américain. Fondateur de la Hughes Tool Company , il a inventé le foret à roche tri-cône rotatif Sharp-Hughes pendant le boom du pétrole au Texas (en) .
