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Patents Granted on 1921-11-29
Patents 1 - 4 of 4
First set of recordsLast set of records
1,398,234Nov. 29, 1921H.A. LandisVariable Angle Screwdriverscrewdriver mechanisms
1,398,338Nov. 29, 1921J.F. MirrieleesLubricating device for drill-presses and the likedrill presses
1,398,779Nov. 29, 1921L.S. HaydenTool for boring and counterboring wooddrill bits
1,398,871Nov. 29, 1921R.L. LivingstonDividersdividers
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