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US Patent: 1,800,982
Hydraulic Change-Speed Gear Mechanism
Patentees:
Frank H. Mussler (exact or similar names) - Bridgeport, CT
Edward C. Bullard (exact or similar names) - Bridgeport, CT

USPTO Classifications:
29/29, 29/42, 409/156, 409/170, 74/346, 91/464, 91/525

Tool Categories:

Assignees:
Bullard Co. - Bridgeport, CT

Manufacturer:
Bullard Co. - Bridgeport, CT

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 21, 1925
Granted: Apr. 14, 1931

Patent Pictures:
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Vintage Machinery entry for Bullard Machine Tool Co.

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