| Patents Granted on 1930-10-21 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,778,748 | Oct. 21, 1930 | L.G. Bayner | Wrench | pipe wrenches |
| 1,778,803 | Oct. 21, 1930 | L.S. Hubbert | Hydraulic Plastic Press | hydraulic presses |
| 1,778,949 | Oct. 21, 1930 | H.W. Johnson | Metal Working Tool | |
| 1,779,006 | Oct. 21, 1930 | E.P. Larsh | Short circuiter | repulsion start induction run motors |
| 1,779,031 | Oct. 21, 1930 | W.P. Casey | Electric handsaw | handheld circular saws |
| 1,779,083 | Oct. 21, 1930 | S.J. Bens | Link for belts or chain saws | tree felling machines |
| 1,779,088 | Oct. 21, 1930 | D.P. Davies | Internal Combustion Engine | internal combustion traction engines |
| 1,779,170 | Oct. 21, 1930 | W. Johnson | Household tool | non worm cork extractors |
| 1,779,189 | Oct. 21, 1930 | J.F. Russell | Tool Holder | lathe tool holders and tool posts |
