CA Patent: CA-41,437
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| Wrench
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Patentee:
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| Daniel Rupert Porter (exact or similar names) - Chelsea, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 31, 1891 |
| Granted: |
Dec. 30, 1892 |
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Patent Pictures:
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Daniel R. Porter patent Dec. 30, 1892 |
CIPO Data
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Stan Schulz
CA-41437 in ESPACENET
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Description: |
| Screw adjust pipe wrench corresponding to U.S. patent 450,681. The Canadian patent lists a different "2nd" name. ESPACENET and the online Canadian Patents Database omit the cover sheet which would verify this individual's relationship to the patent, and the original application date. |
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