| US Patent: 732,379 
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| Carpenter's Gage | 
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| Patentee: |  |
 | Lewis Shireman (exact or similar names) - Martinsville, IN |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Oct. 18, 1901 |  
| Granted: | Jun. 30, 1903 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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	        ] |  |  |  | Image courtesy of Hampton L. Williams |  Google Patents
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                        Russ Allen.
 
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| Description: |  | Try square with one side of the preforations aligned with a graduated scale on the blade. This allows a pencil to be inserted into the slot for marking accurate lines parallel to the face of the square as would be needed when marking a board for ripping.
Mr. Shireman references Farnam's patent 171,927 which also uses perforations for laying out lines. |  |