Home| FAQSearch:Advanced|Person|Company| Type|ClassLogin
Quick search:
Patent number:
Patent Date:
All Patents in class 76/2
Patents 1 - 15 of 16
First set of recordsNext set of recordsLast set of records
NumberDatePatenteeTitleType
851Jul. 24, 1838R.N. Watrous, E. L'HommedieuMachinery for manufacturing double-twist screw-augerstool making machines
RE72Jul. 30, 1845E. L'HommedieuImprovement in machinery for manufacturing double-twist screw-augersdrill bits
56,869Jul. 31, 1866R. JenningsImprovements in Machinery for Swaging the Heads of Screw Augerstool making machines
76,955Apr. 21, 1868J. SwanImproved Machine for Making Auger-Bitsmaking drills and augers
78,769Jun. 09, 1868J. SwanMachine for Upsetting Cook's Bitsmaking drills and augers
100,816Mar. 15, 1870J. SwanMachine for Upsetting Cook's Bitsmaking drills and augers
116,509Jun. 27, 1871J. SwanImprovement in machines for forming lips of auger-bitstool making machines
RE4,516Aug. 15, 1871J. SwanMachine for Upsetting Cook's Bitsmaking drills and augers
RE4,517Aug. 15, 1871J. SwanMachine for Upsetting Cook's Bitsmaking drills and augers
RE4,569Sep. 26, 1871J. SwanImprovement in Machinery for Forming the Lips of Augersmaking drills and augers
124,683Mar. 19, 1872W.A. IvesImprovement in Machines for Forming Auger-Bitstool making machines
139,091May 20, 1873J. SwanImprovement in Machines for Forming the Lips of Augers
141,401Jul. 29, 1873J. SwanImprovement in Machines for Forming Auger-Bitsmaking drills and augers
RE5,624Oct. 21, 1873J. SwanMachine for Upsetting Cook's Auger Bitsmaking drills and augers
151,325May 26, 1874W. TuckerImprovement in Machines for Forming Auger Bits
Toggle print mode
Show pictures

Copyright © 2002-2024 - DATAMP