US Patent: 330,175 
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| Pipe-cutter
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	        Patentees:
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 | Frank Armstrong (exact or similar names) - Bridgeport, CT |  
| Nathaniel W. Vandegrift (exact or similar names) - Bridgeport, CT |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Mar. 03, 1885 | 
 
| Granted: | 
Nov. 10, 1885 | 
 
 
 
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		  Patent Pictures:
	      
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			1 | 2
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                        Jeff Joslin Vintage Machinery entry for Armstrong Mfg. Co. 
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        Description: |  
| An example of this pipe cutter was seen in a 2018 Martin J. Donnelly auction. |  
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