Patents for Joseph Becker, deceased (Estate of)


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Patents for Joseph Becker, deceased (Estate of)
Patents 1 - 1 of 1
Number	Date	Patentee	Title	Type
1,318,045	Oct. 07, 1919	E. Becker, Administrator, J. Becker, deceased (Estate of)	Art of Cutting Screw Threads	metal threading machines