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US Patent: 1,965,230
Hinge Joint for Folding Rules
Patentee: Herman M. Gasstrom (exact or similar names) - Mount Vernon, NY USPTO Classifications: 16/247, 33/495, 403/119, 403/79 Tool Categories: rules : folding rules : folding rule joints Assignees: None Manufacturer: Unknown Witnesses: Unknown	Patent Dates: Applied: Sep. 10, 1931 Granted: Jul. 03, 1934 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Sheet metal construction where joint is held together by clinching the pieces instead of using rivets or pins.

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