US Patent: 513,619
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Wrench
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Patentee:
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Johannes Theodor Pedersen (exact or similar names) - New York, NY |
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Patent Dates:
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Applied: |
Mar. 10, 1893 |
Granted: |
Jan. 30, 1894 |
Patent Pictures:
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Johannes T. Pedersen Pat. Jan. 30, 1894 |
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Stan Schulz
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Description: |
Lugs on the inside of the slotted handle end grip the inner edge of the rim around the edge of the head. The patent shows several alternate head styles. The open end wrench version was produced, incorporating Pedersen's improvements described in pat. no. 539,441. |
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