US Patent: 1,315,071
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Wrench
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Patent Dates:
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Applied: |
Dec. 02, 1918 |
Granted: |
Sep. 02, 1919 |
Patent Pictures:
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Joseph Askins Patent September 2, 1919 |
USPTO (New site tip) Google Patents
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Stan Schulz
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Description: |
The sliding jaw bears against teeth on the shank, with an inner clamping element inside the shank. Tightening the wing nut clamps these elements together firmly.
Known examples marked "LIMA PAT. 9-2-1919" |
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