GB Patent: GB-187,403,994 
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| Wrenches
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	        Patentee:
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 | Malcolm Macleod (exact or similar names) - Manchester,  England |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Granted: | 
Nov. 20, 1874 | 
 
 
 
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		  Patent Pictures:
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M. Macleod patent Nov. 20, 1874 - edited from Abridgments of Specifications  |  
 
Espacenet patent 
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                        Stan Schulz 3,994 in Chronological and Descriptive Index (1874) 
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        Description: |  
| The patent includes a wrench with a sliding "ratchet" adjustable jaw for adjusting elements of concrete forms. The overall patent summary notes "various hand tools to be used in combination with the above apparatus." 
Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of registration and the patent # (with "leading zeros" interposed to make the number total nine digits). This patent is #3,994 of the year 1874. |  
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