| US Patent: 1,748,325 
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| Mortising machine | 
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| Patentees: |  
 | Melvin D. Baldwin (exact or similar names) - Grand Rapids, MI |  | Armen S. Kurkjian (exact or similar names) - Grand Rapids, MI |  | Thomas R. Renwick (exact or similar names) - Grand Rapids, MI |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Nov. 05, 1928 |  
| Granted: | Feb. 25, 1930 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Oliver Machinery Co.
 
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| Description: |  | "The embodiment of this invention which we have made is illustrated as cutting mortises in curved bars such as are used in the manufacture of automobile bodies..." |  |