US Patent: 402,400
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| Tool For Manipulating Saw Teeth
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Patentee:
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| Frederick W. Cook (exact or similar names) - San Francisco, CA |
| USPTO Classifications: |
| 76/80 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 15, 1888 |
| Granted: |
Apr. 30, 1889 |
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Patent Pictures:
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Frederick W. Cook patent April 30, 1889 |
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Stan Schulz
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Description: |
| Specialized pin spanner for insertible saw teeth that are held in place by spring action of the sides of the socket. The pivot between the pins allows them to spread apart. The tool is called a wrench in the specifications. |
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