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| Patents for F. C. Billings | |||||
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| Number | Date | Patentee | Title | Type | |
| 493,857 | Mar. 21, 1893 | C.E. Billings | Drill-chuck | drill press chucks | |
| 735,935 | Aug. 11, 1903 | C.E. Billings | Combination Measuring Tool | special purpose gauges | |