US Patent: 315,388
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Plotter For Tinners' Use
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Patentee:
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Christian D. Cowgill (exact or similar names) - Terre Haute, IN |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Dec. 10, 1884 |
Granted: |
Apr. 07, 1885 |
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Ralph Brendler
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Description: |
This is a specialized square and bevel gage for use by tinsmiths. It can easily figure and mark the angles for any regular polygon. |
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