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US Patent: 2,237,465
Change Gear Retaining Lock
Patentee:
William F. Zimmermann (exact or similar names) - Maplewood, Essex County, NJ

USPTO Classifications:
403/18, 411/517

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms

Assignees:
Gould & Eberhardt - Newark, Essex County, NJ

Manufacturer:
Gould & Eberhardt - Newark, Essex County, NJ

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 09, 1939
Granted: Apr. 08, 1941

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Gould & Eberhardt

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