| Patents Granted on 1929-05-07 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| GB-290,999 | May 07, 1929 | n. listed | Improved Process of and Apparatus for Grinding Hollow Articles | grinding machines |
| 1,711,915 | May 07, 1929 | J.D. Williams | Auxiliary Scrap Shears | metal shearing machines |
| 1,712,053 | May 07, 1929 | H. Shapan | Commutator-Truing Device | commutator dressing machines |
| 1,712,087 | May 07, 1929 | L.T. Medholdt | Cutter head | cutterheads |
| 1,712,148 | May 07, 1929 | S.L. Kneass | Process of Continuosly Supplying Steam at Low Pressure to Injectors | water injectors |
| 1,712,237 | May 07, 1929 | H. Weichsel | Alternating-current motor | induction motors |
| 1,712,261 | May 07, 1929 | F.E. Farley | Switch for power drills | handheld power drills |
| 1,712,473 | May 07, 1929 | G.E. McWethy | Socket Set | wrench set holders |
