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All Patents in class 236/99B | |||||
Number | Date | Patentee | Title | Type | |
2,286,630 | Jun. 16, 1942 | P.S. Russel, W.S. Landon | Heating Apparatus | heating apparatus | |
2,389,111 | Nov. 13, 1945 | E.J. Dillman | Control Means | flow controls |