| Patents Granted on 1917-07-__ |
Patents 1 -
15
of 40
      |
| Number | Date | Patentee | Title | Type |
| 1,231,572 | Jul. 03, 1917 | F.M. Davis | Valve mechanism | internal combustion engine valves |
| 1,231,705 | Jul. 03, 1917 | W.H. Carrier | Apparatus for regulating the humidity and temperature of air | |
| 1,231,721 | Jul. 03, 1917 | H. Dreses | Feeding mechanism in metal-working machinery | radial drill presses |
| 1,231,880 | Jul. 03, 1917 | N.W. Hagen, L. Thiel | Gearing | industrial machine gearing |
| 1,231,920 | Jul. 03, 1917 | T. Lumsden | Tool Holder for Grinding Machines | sharpening tool holders |
| 1,231,934 | Jul. 03, 1917 | H. Packet | Caliper or Measuring Instrument | indicating calipers |
| 1,231,946 | Jul. 03, 1917 | W.L. Schellenbach | Tool-holder stop mechanism | metal lathes |
| 1,232,050 | Jul. 03, 1917 | F. Kraemer | Pressure Riveter | riveting machines |
| 1,232,464 | Jul. 03, 1917 | C.R. Houghton | Dust-separator | dust collectors |
| 1,232,714 | Jul. 10, 1917 | C.G. Olson | Tool Holder and Driver | lathe tool holders and tool posts |
| 1,232,801 | Jul. 10, 1917 | H.J. Hjorth | Universal Lathe Attachment | metal lathe accessories and attachments |
| 1,233,034 | Jul. 10, 1917 | C.W. Crogan | Tape measure | tape measures |
| 1,233,120 | Jul. 10, 1917 | F.R. Patch | Grinding and Polishing Machine | stone cutting machines |
| 1,233,275 | Jul. 10, 1917 | C.V. Kerr | Air Compressor | air compressors |
| 1,233,500 | Jul. 17, 1917 | F.A. Parsons | Transmission Gearing for Milling Machines | metalworking machine mechanisms |
