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Patents for J. H. Chadwick
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
79,548	Jul. 07, 1868	S.E. Chubbuck	Improved machine for making tin-lined lead pipe	pipe making machines
79,549	Jul. 07, 1868	J.H. Chadwick, S.E. Chubbuck	Improved machine for making tin-lined lead pipe	pipe making machines

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