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| Number | Title | Issue Date |
| 4893716 | Claw coupling for toy and model trains A claw coupling for toy model trains includes a coupling support head having a hook and a claw along with a pivotal support pivotably mounting the claw on the coupling support head for movement between a coupled and an uncoupled position. A decoupling pin... | 01/16/1990 |
| 4765496 | Claw coupling for toy and model trains Claw coupling for electric toy and model trains, with a pre-uncoupling device with a claw, which can be swivelled in a horizontal plane and hooked from the side into a rigid hook of the respective opposite anchoring bracket, with a support pin resting in ... | 08/23/1988 |