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US Patent: 2,195,912
Worm Gearing
Patentee: William F. Zimmermann (exact or similar names) - Maplewood, Essex County, NJ USPTO Classifications: 74/397, 74/425, 74/458, 74/724 Tool Categories: metalworking machines : gear making machines : gear hobbing machines metalworking machines : metalworking machine mechanisms : metalworking machine gearing Assignees: Gould & Eberhardt - Newark, Essex County, NJ Manufacturer: Gould & Eberhardt - Newark, Essex County, NJ Witnesses: Unknown	Patent Dates: Applied: Jul. 01, 1939 Granted: Apr. 02, 1940 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Gould & Eberhardt

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