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All Patents in class 244
Patents 1 - 8 of 8
First set of recordsLast set of records
33,863Dec. 03, 1861J.A. WoodburyImprovement of Projectiles for Smooth-Bored Ordinancebullets
35,965Jul. 22, 1862J.P. Woodbury, S.S. GrayImprovement in sabots for feathered projectiles
221,855Nov. 18, 1879B.B. OppenheimerParachute hat
363,037May 17, 1887C.R. WulffBird powered flying machine
821,393May 22, 1906O. Wright, W. WrightFlying-machine
1,655,113Jan. 03, 1928N. TeslaMethod of aerial transportation
1,655,114Jan. 03, 1928N. TeslaApparatus for aerial transportation
2,489,811Nov. 29, 1949H.C. PerkinsBelt polishing and grinding machinesanding machines
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