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| Number | Title | Issue Date |
| 4114594 | Device for synchronously rotating solar collectors A device for rotating solar collectors has a pulley assembly connected to an individual solar collector of a bank of such collectors for rotating the collector in synchronization with the sun. Connected to the pulley assembly by a flexible member is a dri... | 09/19/1978 |
| 4103672 | Solar collector A solar collector having a reflector element biased toward a parabolic shape by means of forces applied to peripheral edges of the element. The forces can be opposed straight line forces, opposite acting torsion forces, or both, and if a flexible sheet is... | 08/01/1978 |
