US Patent: 623,337
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| Wrench
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Patentee:
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| Birger Isidor Rydberg (exact or similar names) - Westanfors, Sweden |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 17, 1898 |
| Granted: |
Apr. 18, 1899 |
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Patent Pictures:
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Birger Isidor Rydbert patent April 18, 1899 |
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Stan Schulz
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Description: |
| The movable handle has gear teeth engaging gear teeth on the movable jaw, and in fully open position allows the jaw free movement to reposition it. A coil spring at the handle's pivot tends to open the jaw.
Compare the action of this wrench to the EIFEL Plier-Wrench based on patent nos. 1,181,654 and 1,862,817 and the NEFF plier-wrench (patent no. 3,283,623). |
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