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Patents for Wm. Trapp & Co.
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
4,218Oct. 01, 1845W. Trapp, Jr.Barrel machinerycooper
RE132Mar. 10, 1849W. Trapp, Jr.Improvement in barrel machinerycooper
28,701Jun. 12, 1860W. TrappStave-machinecooper
43,933Aug. 23, 1864W. TrappImprovement in machines for dressing heads to barrelscooper
43,934Aug. 23, 1864W. TrappImprovement in machines for dressing staves to barrelscooper
43,935Aug. 23, 1864W. TrappImprovement in machine for jointing headings for barrelscooper
RE1,946May 02, 1865W. Trapp, Jr.Improvement in barrel-machinerycooper
RE1,947May 02, 1865W. Trapp, Jr.Improvement in barrel-machinerycooper
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