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Patents Granted on 1877-01-23
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
RE7,475Jan. 23, 1877T. ShawPower Hammerpower hammers
186,419Jan. 23, 1877J.B. PrickeDraftsman's Compasscompasses
186,513Jan. 23, 1877D.J. AdamsImprovement in Countersinkscountersinks
186,535Jan. 23, 1877F. BrownImprovement in caloric-engineshot air engines
186,541Jan. 23, 1877C.I. ChaffeeImprovement in guides for circular sawscircular saws
186,564Jan. 23, 1877C. HopkinsTreadlehuman powered apparatus
186,575Jan. 23, 1877S.N. JessopPipe-Tongspipe tongs
186,588Jan. 23, 1877D. MaydoleForging Adz-Eye Claw-Hammershammers
186,590Jan. 23, 1877D. MaydoleDies For Forging Hammershammers
186,638Jan. 23, 1877W. ThomsonCompass needle combines ultra-low friction with high polar moment of inertia.
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