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| Patents for Billings & Spencer Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,315,899 | Apr. 06, 1943 | R.L. Kuehn | Machine Tool | ||
| 2,322,525 | Jun. 22, 1943 | R.L. Kuehn | Machine Tool | ||
| 2,326,541 | Aug. 10, 1943 | R.L. Kuehn | Machine Tool | metalworking machines | |
| 2,481,153 | Sep. 06, 1949 | E.J. Robichaud | Driving Mechanism for Automatic Bar Stock Machines and the Like | metalworking machines | |
| 2,534,993 | Dec. 19, 1950 | E.J. Robichaud | Automatic Bar Stock Machine | metalworking machines | |