| All Patents in class 285/61 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 193,088 | Jul. 17, 1877 | B. Holly | Improvement in Street Mains or Pipes for Supplying Large Districts with Heat for Warming Buildings | steam apparatus |
| RE9,730 | May 31, 1881 | B. Holly | Street-Main | steam heating |
| 1,517,544 | Dec. 02, 1924 | E.R. Draver | Means for coupling telescoped tubular members | |
| 2,737,685 | Mar. 13, 1956 | L.D. Fitler | Self-sealing telescopic splice-box | wire insulating machines |
| 3,649,051 | Mar. 14, 1972 | S.E. Klabunde, G.H. Jones | Collector Ring Arrangement | metalworking machine mechanisms |
