US Patent: 2,704,477
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| CENTERING AND GUARD SPRING FOR PIPE WRENCHES
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Patentee:
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| Clyde E. Wright (exact or similar names) - Elyria, OH |
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Patent Dates:
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| Applied: |
Sep. 13, 1952 |
| Granted: |
Mar. 22, 1955 |
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Patent Pictures:
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Patent 2,704,477 -- edited from PATENT GAZETTE |
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Stan Schulz
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Description: |
| The spring structure in this patent is described in relation to aluminum or magnesium alloy wrench frames to provide wear resistance.
RIDGID aluminum frame pipe wrenches were made in sizes through 48 inch. |
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