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Patents Granted on 1923-03-06
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,447,384Mar. 06, 1923F. HardingeFuel oil burnerindustrial furnaces
1,447,385Mar. 06, 1923F. HardingeOil burnerindustrial furnaces
1,447,422Mar. 06, 1923A.R. McCannPlanermetal planers
1,447,447Mar. 06, 1923J.E. WainwrightValve Lifting Devicevalve spring tools
1,447,725Mar. 06, 1923G.L. KelleyMeans for connecting the parts of structures
1,447,836Mar. 06, 1923W.H. Collier, A.J. VanceDrierveneer machines
1,447,920Mar. 06, 1923W.L. BessoloPipe Tongschain and strap wrenches
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