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Patents for R. Ball & Co.
Patents 31 - 32 of 32
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NumberDatePatenteeTitleType
143,538Oct. 07, 1873E.H. SmithImprovement in adjustable ratchet-rodswoodworking machine mechanisms
149,466Apr. 07, 1874D.L. GibbsImprovement in mortising-machinesmortising machines
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