| Patents for Orr & Sembower, Inc. |
Patents 31 -
43
of 43
      |
| Number | Date | Patentee | Title | Type |
| GB-856,879 | Dec. 21, 1960 | R.D. Northcote, J.A. Tatem | Improvements in Boilers | stationary boilers |
| CA-612,152 | Jan. 10, 1961 | G.H. Garraway | Recirculating and Supply Valve | valves |
| 2,973,727 | Mar. 07, 1961 | R.D. Northcote | Pulverised Fuel Burner | stationary boilers |
| CA-616,380 | Mar. 14, 1961 | R.D. Northcote, J.A. Tatem | Boilers | stationary boilers |
| 2,976,885 | Mar. 28, 1961 | R.P. Kirkup, G.H. Garraway | Fuel Control Valves | stationary boilers |
| GB-870,553 | Jun. 14, 1961 | R.D. Northcote | Pulverised Fuel Burner | stationary boilers |
| 2,989,119 | Jun. 20, 1961 | E.A. Burt | Burners | stationary boilers |
| BE-611,158 | Apr. 04, 1962 | P.B. Seasholtz, S.N. Craig | Boilers | stationary boilers |
| CA-639,964 | Apr. 17, 1962 | E.A. Burt | Hot Water Boiler | stationary boilers |
| ES-286,698 | Oct. 16, 1963 | . | Boiler | stationary boilers |
| ES-291,870 | Feb. 16, 1964 | . | Liquid Fuel Atomizing Injector Apparatus | stationary boilers |
| CA-695,065 | Sep. 29, 1964 | P.B. Seasholtz, S.N. Craig | Boilers | stationary boilers |
| 3,259,108 | Jul. 05, 1966 | P.B. Seasholtz, S.N. Craig | Boilers | stationary boilers |
