Patents for John T. Plass


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Patents for John T. Plass
Patents 1 - 4 of 4
Number	Date	Patentee	Title	Type
27,381	Mar. 06, 1860	J.T. Plass	Slide-valve for steam-engines	steam engine valves
44,819	Oct. 25, 1864	J.T. Plass	Improvement in machines for crushing ores
82,244	Sep. 15, 1868	J.T. Plass, R.H. Plass	Apparatus for carbureting air	carburetors
107,195	Sep. 06, 1870	J.T. Plass	Improvement in sawing-machine	bandsaws