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All Patents in class 415/90
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	640,237	Jan. 02, 1900	J. Straszer	Rotary Gas Engine
	1,031,834	Jul. 09, 1912	B. Brazelle	Fluid-pressure engine
	1,061,142	May 06, 1913	N. Tesla	Fluid propulsion
	1,061,206	May 06, 1913	N. Tesla	Turbine

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