All Patents in class 60/619


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All Patents in class 60/619
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
155,087	Sep. 15, 1874	J. Hirsch	Hot Air Engines	hot air engines
878,925	Feb. 11, 1908	E.J. Woolf	Reversible Explosive Compound-Engine.	internal combustion engines