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Patents for A. C. Hetherlin
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
1,113,152Oct. 06, 1914F.H. ClementCut-off gage for sawing-machines
1,113,153Oct. 06, 1914F.H. ClementMachine-gage
1,327,160Jan. 06, 1920J. HurtigElectrically-driven spindle
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