| All Patents in class 474/88 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 467,097 | Jan. 12, 1892 | J. Hartness | Belt Shipper | industrial machine pulleys and belt drive mechanisms |
| 948,697 | Feb. 08, 1910 | B.M. Hanson | Gearing | industrial machine gearing |
| 1,953,132 | Apr. 03, 1934 | H.J. Renken | Power Transmission Apparatus | power transmissions |
| 2,346,731 | Apr. 18, 1944 | J.G. Collins | Drill press | drill presses |
| 2,566,579 | Sep. 04, 1951 | F.L. Nichols | Multiple-speed drill press | drill presses |
| 2,613,544 | Oct. 14, 1952 | O. Cullman | Mounting for transmission gearing and guard | |
| 2,716,350 | Aug. 30, 1955 | R.D. Phares | Slow speed converter motor drive | metalworking speed changing mechanisms |
