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| Patents for Floyd W. Preslan | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,557,840 | Jun. 19, 1951 | F.W. Preslan | Valve Seat Gauge | ||
| 2,930,136 | Mar. 29, 1960 | F.W. Preslan, R.G. Knudsen | Linkage Gauge for Automatic Transmissions and the Like | ||