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Patents Granted on 1852-05-??
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
8,922May 04, 1852A. HotchkissAdjustable Screw-Slide Wrenchscrew adjust wrenches
8,923May 04, 1852J. McClinticDifferential safety-valvesteam safety valves
8,929May 04, 1852W. SouthwellMachinery for grinding or polishing saw-blades, &c.tool making
8,931May 04, 1852D.H. ThompsonWindow-blind machinerywindowblind machines
8,953May 18, 1852A.G. BachelderSaw Setsaw sets
8,954May 18, 1852E. BoothStraining saws in sawmillsreciprocating sawmills
GB-185,214,140May 22, 1852J. Mason, G. CollierImprovements in machinery for preparing, spinning, twisting, doubling, and weaving cotton, wool and other fibrous materialsspinner
8,966May 25, 1852J.B. ChambersMortising-machinemortising machines
8,976May 25, 1852D. WoodcockMachine for jointing stavesbarrel making machines
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