All Patents in class 29/254


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All Patents in class 29/254
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	446,622	Feb. 17, 1891	F.A. Flanegin	Drill Jar
	900,337	Oct. 06, 1908	W.B. Wingate	Flue Plugger
	2,561,577	Jul. 24, 1951	R.G. Knudsen	Pneumatic Impact Pullers and the Like
	3,791,012	Feb. 12, 1974	A.S. Jenkin	Traction Applying Tool