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| Number | Title | Issue Date |
| 4034824 | Vehicle wheel lock assembly A vehicle wheel lock assembly for enabling the operator of a vehicle having a frame to lock one or more of the four wheels, at will, when the vehicle power is inoperative, which includes a normally retracted reciprocal locking rod mounted on and movable t... | 07/12/1977 |
| 4031977 | Transmission devices for motor vehicles A transmission device for a vehicle comprises a common linearly movable selector rod for selecting the drive mode of the transmission and for actuating a parking brake. The driving mode is determined by a rack formed on the rod and engageable with a pinio... | 06/28/1977 |
| 4018440 | Invalid walker with wheel control mechanism A walker to aid an invalid is disclosed. The walker includes a frame mounted on at least one wheel to allow the walker to roll along the floor. The frame and at least one wheel have coacting lock-catch-and-release means arranged such that when the user pu... | 04/19/1977 |
| 3990541 | Park-lock mechanism for transmission A park-lock mechanism for a transmission having a rotatable gear and a double lug latch pivotally mounted adjacent the gear and having its lugs spaced apart a distance different from that of the spacing of the teeth on the gear, whereby one of the lugs wi... | 11/09/1976 |
| 3986582 | Braking system for a rollable service cart Spring-biased longitudinally movable pin means are mounted to be engageable with circumferentially spaced recesses around the inside faces of non-pivoting casters that are, in turn, positioned under the mid-portion of a rollable service cart so as to prov... | 10/19/1976 |
| 3952838 | Transmission park-lock mechanism A transmission park-lock mechanism having a transmission shaft and a toothed gear thereon. A latch is mounted on a shaft adjacent the gear and engages the gear teeth for restraining the gear and the transmission shaft from rotating. There is a shaft and a... | 04/27/1976 |
