| US Patent: 360,545 
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| Draftsman's Rule | 
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| Patentee: |  |
 | Emanuel F. Wagner (exact or similar names) - Brooklyn, Kings County, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Sep. 04, 1886 |  
| Granted: | Apr. 05, 1887 |  USPTO (New site tip)
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                        Joel Havens
 
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| Description: |  | Claim:
A rule for use in drawing a number of uniformly-spaced lines, and consisting of two parts which intermatch so that the rule will have similar sides and can be reversed to present either side upward. |  |