Patents for Clarence Otto Throp


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Patents for Clarence Otto Throp
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,208,406	Dec. 12, 1916	C.O. Throp	Valve Remover	valve spring tools
1,234,967	Jul. 31, 1917	C.O. Throp	Valve Removing Tool	valve spring tools