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This is a patent describing a mechanism for a convertible rooftop for vehciles, by Edgar Rathbun, filed on Aug. 1921. It has seven linkages and nine revolute joints in the system.
immage: Vehicle-top US-Patent No. US000001539209
| Date | : | 15.04.2013 |
| Location | : | Rheinisch-Westfälische Technische Hochschule Aachen, Germany |
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