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| Patents for Frederick C. Billings | |||||
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| Number | Date | Patentee | Title | Type | |
| 392,490 | Nov. 06, 1888 | C.E. Billings | Commutator-bar for dynamo-electric machines | motor commutators | |
| CA-51,763 | Mar. 25, 1896 | F. Lombard, F.C. Billings | Drop Hammer | drop hammers | |
| CA-51,764 | Mar. 25, 1896 | W.J. Belcher, F.C. Billings | Drop Hammer | drop hammers | |