| Patents Granted on 1931-06-02 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 1,807,625 | Jun. 02, 1931 | H.J. Hjorth | Valve Wrench | wrenches |
| 1,807,829 | Jun. 02, 1931 | E.P. Bullard, Jr. | Double Angular Tool Slide | |
| 1,807,896 | Jun. 02, 1931 | E. Cheshire | Vise | printer |
| 1,807,941 | Jun. 02, 1931 | E.B. Stimpson, J.F. Suessle | Feeding mechanism for riveting machines | riveting machines |
| 1,807,942 | Jun. 02, 1931 | E.B. Stimpson | Rivet feed | riveting machines |
| 1,807,999 | Jun. 02, 1931 | E.P. McMurtry | Universally Adjustable Tool Holder | sharpening tool holders |
| 1,808,074 | Jun. 02, 1931 | W.P. Huffman, F.F. Rike | Valve | |
| 1,808,190 | Jun. 02, 1931 | F.J. Vlchek | Wrench Set Unit | wrench set holders |
| 1,808,228 | Jun. 02, 1931 | J.W. Nissrod, E. Hulack | Attachment for electric drills | handheld power reciprocating saws |
| 1,808,240 | Jun. 02, 1931 | C.G. Mahana | Power Transmission Means | industrial machine clutches |
| 1,808,275 | Jun. 02, 1931 | F.N. Whitesell | Safety Apparatus | hoists, winches, come-alongs |
| 1,808,453 | Jun. 02, 1931 | A.E. De Koning | Combination sawing machine | tablesaws |
