Transportation – Parts – accessories and attachments for vehicles not... – Control element
Patent
1976-10-12
1977-09-20
Douglas, Alan P.
Transportation
Parts, accessories and attachments for vehicles not...
Control element
D1216
Patent
active
D02458390
REFERENCES:
patent: D157440 (1950-02-01), Schindler
patent: D179786 (1957-02-01), Smith
patent: D220728 (1971-05-01), Cox
patent: 3138133 (1964-06-01), Hatch
patent: 3238957 (1966-03-01), Clarkson
Douglas Alan P.
Sperry Rand Corporation
Terry Howard P.
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