US Patent: 485,402
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| Separable Square
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Patentee:
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| Frederick W. Wohlfert (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 03, 1892 |
| Granted: |
Nov. 01, 1892 |
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Russ Allen.
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Description: |
| A dovetailed tenon slides into the second leg and is expanded and secured by a pin or screw. A additional means of securing the leg is also provided by use of either a fixed or sliding cam.
This patent was handwritten on top of a later patent 813,922 perhaps as an examiner's note due to the cam feature. |
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