US Patent: 1,981,269 
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| Valve seat grinder
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	        Patentee:
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 | John W. Holland (exact or similar names) - Fitchburg, MA |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
May 04, 1934 | 
 
| Granted: | 
Nov. 20, 1934 | 
 
 
 
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                        Jeff Joslin Vintage Machinery entry for J. W. Holland | Marburg Brothers, Inc. 
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        Description: |  
| The Holland-Kenyon Machine Machine Company was "a partnership consisting of John W. Holland and Samuel A. Kenyon". The 1921-03-03 issue of The Iron Trade Review carried a notice that this partnership had been organized. The 1922 Directory of Massachusetts Manufacturers list them as making auto parts, with two employees. A 1952 listing of Massachusetts corporations listed the firm. A 1935 ad proclaims them the makers of the Moller Gypsy Gun, for killing gypsy and browwntail moths: "Expert tree men acclaim it the most practical instrument for this work." |  
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