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Patents for Charles J. Graf
Patents 1 - 2 of 2
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

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