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All Patents in class 474
Patents 1 - 15 of 385
First set of recordsNext set of recordsLast set of records
FX-6,346Jan. 21, 1831J.W. Dart, W. WebsterPropelling mills
1,322Sep. 14, 1839S. KingMachine for sawing and jointing stavesbarrel making machines
8,745Feb. 17, 1852R.W. ParkerBanding pulleyscircular saws
9,845Jul. 12, 1853S.T. SanfordBoring-machinedrilling and boring
10,374Jan. 03, 1854D.H. ChamberlainMode of banding pulleys for sawswoodworking power transmission
15,559Aug. 19, 1856R. EickemeyerImproved method of regulating the velocity of feed for sawing-millssawmills
RE900Feb. 14, 1860G. Westinghouse, Sr.Improvement in endless-chain horse-powers
27,846Apr. 10, 1860H. UnderwoodBeltingindustrial machine mechanisms
RE1,322Jul. 01, 1862A.W. GrayImprovement in horse-powersanimal powered apparatus
38,025Mar. 31, 1863J. BrinkerhoffImproved Mode of Hanging Balance-Wheels, &c.industrial machine mechanisms
44,897Nov. 01, 1864P.D. ShawImprovement in sawmillscircular sawmills
46,890Mar. 21, 1865D. EldridgeImprovement in fly-wheels
52,219Jan. 23, 1866H.B. SmithImprovement in tenoning-machinestenoning machines
60,374Dec. 11, 1866J.A. HolfordImprovement in sawmillscircular sawmills
61,938Feb. 12, 1867A. HitchcockMachine Gearingindustrial machine gearing
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