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Patents for Roger T. Thornton | |||||
Number | Date | Patentee | Title | Type | |
1,866,196 | Jul. 05, 1932 | A.A. Criqui, R.T. Thornton | Gas purifier or scrubber | ||
1,989,228 | Jan. 29, 1935 | A.A. Criqui, R.T. Thornton | Air conditioning apparatus | air conditioning apparatus |