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All Patents in class 278/75
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
591,561	Oct. 12, 1897	H.A. Moyer, C.J. Graf	Thill-coupling
610,768	Sep. 13, 1898	H.A. Moyer, C.J. Graf	Thill-coupling
636,831	Nov. 14, 1899	H.A. Moyer	Thill-coupling

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