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Patents for D. C. Allen & Co.
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
141,744Aug. 12, 1873D.C. AllenMolding cutter-headcutterheads
151,217May 26, 1874E.F. GordonImprovement in band sawing machinesbandsaws
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