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| Patents for Howell Bartte | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 278,168 | May 22, 1883 | L.H. Nash | Combined Gas Engine and Air Compressor | |
 | 278,255 | May 22, 1883 | L.H. Nash | Gas Engine | |
 | 278,256 | May 22, 1883 | L.H. Nash | Gas Engine | |
 | 289,691 | Dec. 04, 1883 | L.H. Nash | Gas Engine | |
 | 418,417 | Dec. 31, 1889 | L.H. Nash | Gas Engine | |
 | 432,114 | Jul. 15, 1890 | G.B. Brayton | Gas and Air Engine | |