US Patent: 858,791
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| Square
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Patentee:
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| Frederick G. Breul (exact or similar names) - Bridgeport, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 15, 1907 |
| Granted: |
Jul. 02, 1907 |
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Ralph Brendler
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Description: |
| This is a simple wheet metal square, with the addition of a sheet metal fence. The primary claims are for the fact that it would be very cheap to manufacture.
This design was widely used, but I have never seen one of these squares marked with the patent date to be sure it was this particular patent. |
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