Hughes Tool company (22 dic 1907 año – 30 jun 1984 año)

Descripción:

Established in December 1908 by Hughes Sr.
merged into Baker Hughes Incorporated in 1984.

Other Names:
Sharp-Hughes Tool Company (1908-19??)
Summa Corporation (1972-1987)

Subsidiaries:
Hughes Aircraft Company (1932-1953)
Howard Hughes Medical Institute (1953-Present)

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