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| All Patents in class 33/735 | |||||
| Number | Date | Patentee | Title | Type | |
| 382,193 | May 01, 1888 | L.J. Ross | Rope-Measuring Device | wheel-based measurers | |
| 4,794,773 | Jan. 03, 1989 | C.R. Bradlee | Method of measuring camber | ||