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All Patents in class 72/400
Patents 1 - 3 of 3
First set of recordsLast set of records
229,198Jun. 22, 1880C.F. SteinwayScrew-clamp for wood-bending machinesmusic instrument maker
322,930Jul. 28, 1885H. HammondForging Hammerpower hammers
634,284Oct. 03, 1899E.G. BuddDie for forming sheet-metal pulley-rimsindustrial machine pulleys and belt drive mechanisms
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