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Patents for F. X. Bertrand Mfg. Co.
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-12,834May 19, 1881F.X. BertrandImprovements in shingle machinesshingle machines
CA-14,892Jun. 03, 1882F.X. BertrandImprovements in the F. X. Bertrand shingle sawing machineshingle machines
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