| US Patent: 1,295,180 
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| Depth Angle-Gage | 
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| Patentee: |  |
 | Louis Lowenstein (exact or similar names) - Detroit, MI |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | May 25, 1918 |  
| Granted: | Feb. 25, 1919 |  USPTO (New site tip)
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                        Ralph Brendler
 
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| Description: |  | This depth gauge features grooves milled in the head to allow it to be quickly and accurately set to 90, 60, and 30 degree angles. |  |