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Patent applications and USPTO patent grants for Sturgis; Clifford M..The latest application filed is for "central heating systems furnace having a self-contained electric steam heating unit".
Patent | Date |
---|---|
Central heating systems furnace having a self-contained electric steam heating unit Grant 4,223,205 - Sturgis September 16, 1 | 1980-09-16 |
Detachable fluid coupling Grant 4,105,046 - Sturgis August 8, 1 | 1978-08-08 |
Self-contained electric steam space heating unit Grant 3,927,299 - Sturgis December 16, 1 | 1975-12-16 |
Self-contained Steam Heating Unit Grant 3,640,456 - Sturgis February 8, 1 | 1972-02-08 |
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