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All Patents in class 228/112.1
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
444,721Jan. 13, 1891J.H. BevingtonSpinning Tubemetal spinning machines
463,617Nov. 24, 1891J.H. BevingtonMode of Making Tubestube making machines
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