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| Number | Title | Issue Date |
| 4062400 | Air handling method and system In an air conditioning method and system for supplying conditioned air to an enclosed space, such as a room or rooms in a building, air is withdrawn from the room at separate positions located adjacent the floor and ceiling in order to advantageously util... | 12/13/1977 |
| 4015540 | Electromagnetic transportation system An electromagnetic transportation system for a vehicle which is adapted to travel along the inside of a tube. The system includes a series of electrical coils about the periphery of the tube which are connected to a three-phase alternating current supply.... | 04/05/1977 |
