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| Patents for Birtman Electric Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,823,726 | Sep. 15, 1931 | J.F. Carson | Bag support for vacuum cleaners | |
 | 2,635,651 | Apr. 21, 1953 | B.W. Hulfish | Jigsaw with drive of scotch yoke type | |
 | 2,654,405 | Oct. 06, 1953 | B.W. Hulfish | Jigsaw with drive of scotch yoke type | |