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Patents for Paul R. Hahnemann
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
833,716Oct. 16, 1906P.R. HahnemannSheet-metal hollow-ware drawing-pressstamping presses
1,406,004Feb. 07, 1922P.R. HahnemannMetal Working Machinethread rolling machines
1,521,367Dec. 30, 1924P.R. HahnemannGauge for Machines for Folding Sheet Metalgauges
1,735,243Nov. 12, 1929P.R. HahnemannSlip Roll Forming Machinesheet metal forming rolls
1,742,654Jan. 07, 1930P.R. HahnemannSlip Rol Forming Machinesheet metal forming rolls
1,812,479Jun. 30, 1931P.R. HahnemannSheet metal working machinesheet metal
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