US Patent: 2,363,350 
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| Tool for Sevicing Battery Terminals
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	        Patentee:
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 | Walter P. Nail (exact or similar names) - Toronto, ON Canada |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Feb. 11, 1944 | 
 
| Granted: | 
Nov. 21, 1944 | 
 
 
 
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		  Patent Pictures:
	      
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Patent 2,363,350 - edited drawing  |  
 
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                        Stan Schulz "Vintage Machinery" entry for Duro Metal Products Co. 
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        Description: |  
| Known examples are marked DURO and BELDEN.  The tool combines battery terminal cable clamp spreader and lifter, along with box end wrench corresponding to nut size commonly used on the cable terminal clamps of the era.  A 1948 write-up describes the tool's use.
One description appears in the ALLOY-ARTIFACTS section on DURO /  INDESTRO (alloy-artifacts.org).
McCaleb, Wendt & Dickinson - patent attorneys 
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