| US Patent: 67,338 
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| Square Improvement in Squares
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| Patentee: |  |
 | J. Morss (exact or similar names) - Philadelphia, PA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Jul. 30, 1867 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | J. Morss Pat. July 30, 1867 |  Google Patents
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                        Stan Schulz
 Pat. no. 67,338 patent model (Hagley Museum)
 
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| Description: |  | The blade slides back & forth in a fashion similar to a sliding T bevel, or a combination square. This allows testing rabets and similar situations where a try-square blade would be too long. The patent covers the slotted blade and the thumb screw.
The original patent model is at the Hagley Museum (Wilmington, DE). |  |