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| All Patents in class 236/44R | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,314,558 | Mar. 23, 1943 | P.S. Russel | Apparatus for and Method of Air Conditioning | air conditioning apparatus | |
| 3,066,553 | Dec. 04, 1962 | W.A. Kimsey | Lathe Carriage Drive | metalworking machine mechanisms | |