| US Patent: 857,542 
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| Measuring-Tool Flexible Rule and Holder
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| Patentee: |  |
 | William Thain (exact or similar names) - Newport, KY |  
 
| USPTO Classifications: |  | 33/3A |  
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | May 03, 1906 |  
| Granted: | Jun. 18, 1907 |  USPTO (New site tip)
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                        Ralph Brendler
 
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| Description: |  | This is a really unusual little rule for measuring curved surfaces.  It consists of a flexible tape, mounted in a spring frame, allowing it to be pressed against an irregular shape and automatically pull the tape taut. |  |