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Patents for Pratt & Whitney Co.
Patents 1 - 15 of 147
First set of recordsNext set of recordsLast set of records
29,939Sep. 04, 1860F.A. PrattImprovement in devices for stopping and changing motion
33,816Nov. 26, 1861F.A. PrattImprovement in stopping and changing motion
93,903Aug. 17, 1869F.A. PrattMetal Planingmetal planers
102,577May 03, 1870W. Pim, A. NewellMetal Chuckmetal planers
D4,439Oct. 25, 1870F.A. PrattDesign for a drilling-machinedrill presses
112,379Mar. 07, 1871F.A. PrattImprovement in machines for shaping and cutting gear-cutters
118,481Aug. 29, 1871E.G. ParkhurstImprovements in Machinery for Feeding Wire to Machinesmetalworking machine mechanisms
148,566Mar. 17, 1874D. KennedyGriping and Cutting Toolsmetal shears
161,968Apr. 13, 1875D. KennedyMetal Punchmetal punches
164,391Jun. 15, 1875F.A. PrattImprovement in metal-shearing machines
164,392Jun. 15, 1875F.A. PrattImprovement in drop-hammers
165,519Jul. 13, 1875A. SwaseyProtractorprotractors
167,165Aug. 31, 1875J.J. GrantImprovement in die-stockstap wrenches and die stocks
168,412Oct. 05, 1875F.A. PrattImprovement in cranescranes
170,949Dec. 14, 1875J.J. GrantImprovement in screw-cutting die holderstap wrenches and die stocks
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