Patents Granted on 1931-11-10 |
Patents 1 -
7
of 7
      |
Number | Date | Patentee | Title | Type |
1,830,813 | Nov. 10, 1931 | H.E. Tautz | Cutter head | cutterheads |
1,831,172 | Nov. 10, 1931 | E.A. Hall | Cylinder Hone | honing tools |
1,831,382 | Nov. 10, 1931 | E. Gairing | Full Floating Universal Tool Holder | drilling and boring tool holders |
1,831,447 | Nov. 10, 1931 | R. Heinrich | Metal cutting instrument | metal shearing machines |
1,831,609 | Nov. 10, 1931 | W. Schröder | Garden Shears | pruning implements |
1,831,681 | Nov. 10, 1931 | J. Miller | Edge trimming and mowing machine | lawn mowers |
1,831,705 | Nov. 10, 1931 | S.T. Freas | Insertable Tooth Saw | |