US Patent: 2,370,308
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| Self-Locking Pliers
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Patent Dates:
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| Applied: |
Mar. 12, 1943 |
| Granted: |
Feb. 27, 1945 |
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Patent Pictures:
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Abraham G. Hanson Pat. Feb. 27, 1945 |
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Description: |
| The action of the secondary pivot point locks the gri as the pliers is closed, and increases the pressure of the grip as the jaws approach closure. |
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