Patents for Thor H. Ljunggren


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Patents for Thor H. Ljunggren
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	2,503,674	Apr. 11, 1950	T.H. Ljunggren	Grinding machine drive
	2,585,533	Feb. 12, 1952	W.J. Bryant, T.H. Ljunggren, W.F. Moore	Internal grinding machine with automatic air gauge sizing
	2,590,151	Mar. 25, 1952	W.J. Bryant, H.H. Gates, T.H. Ljunggren	Bore gauge head
	2,622,939	Dec. 23, 1952	T.H. Ljunggren	Carriage mounting