Patents for James Aitchison


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Patents for James Aitchison
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	217,570	Jul. 15, 1879	J.F. Doolittle, J. Aitchison	Boiler Flue Cleaner
	246,858	Sep. 13, 1881	J. Aitchison	Relief Valve for Steam Engines
	510,149	Dec. 05, 1893	J. Aitchison	Oil Burner