US Patent: 377,827
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Wrench
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Patent Dates:
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Applied: |
Jan. 29, 1887 |
Granted: |
Feb. 14, 1888 |
Patent Pictures:
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Henry W. Hackley patent February 14, 1888 |
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Description: |
The movable jaw with a short handle is pushed closed by a compression spring. It provides sufficient pressure to hold the axle nut. |
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