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US Patent: 2,167,450
Power transmitting unit
Patentee: Michael I. Ginsburg (exact or similar names) - Philadelphia, PA USPTO Classifications: 192/110B, 192/17R, 192/66.23 Tool Categories: household : sewing machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 25, 1937 Granted: Jul. 25, 1939 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: This specification makes clear that this is a modular transmission for a sewing machine.

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