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| Patents for Franklin D. Pierce | |||||
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| Number | Date | Patentee | Title | Type | |
| 263,954 | Sep. 05, 1882 | F.D. Pierce | Steam Generator for Road Vehicles or Other Purposes | steam generators | |
| 274,024 | Mar. 13, 1883 | F.D. Pierce | Road Engine | steam road engines | |