| US Patent: 2,937,577 
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| Tracing Apparatus | 
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| Patentee: |  |
 | John M. Morgan, Jr. (exact or similar names) - Montgomery, Hamilton County, OH |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Dec. 28, 1954 |  
| Granted: | May 24, 1960 |  USPTO (New site tip)
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                        Joel Havens
 "Vintage Machinery" entry for Cincinnati Milling Machine Co.
 
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| Description: |  | Original application filed 28 Dec., 1954, now patent #2,868,087. Divided and this application filed 13 Oct., 1958. |  |