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| Patents for Roan Mfg. Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,919,743 | Jul. 25, 1933 | S.E. Peters | Temperature controlled furnace fan | |
 | 2,076,275 | Apr. 06, 1937 | A.P. Jorgenson | Electric flasher | |
 | 2,109,233 | Feb. 22, 1938 | A.P. Jorgenson | Paint and liquid mixer | |
 | 2,325,249 | Jul. 27, 1943 | A.P. Jorgenson | Delayed action interrupter electric impulse apparatus | |