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Patents for Charles N. Bamburgh
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
9,688Apr. 26, 1853T.J. SloanMachine for pointing and threading screw-blanks
11,784Oct. 10, 1854J.W. GriffithsImprovement in construction of ships
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