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US Patent: 1,251,466
Automatic braking device for compensation-gears of automobiles and other similar vehicles
Patentee:
Hugo Bilgram - Philadelphia, PA

USPTO Classifications:
475/90

Tool Categories:
transportation machines : motor vehicles

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
N. Bussinger
John Wiedersheim

Patent Dates:
Applied: Jul. 17, 1917
Granted: Jan. 01, 1918

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Hugo Bilgram, Bilgram Machine Works

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