VAN ORSDEL, Associate Justice.
This appeal is from the decision of the Commissioner of Patents, rejecting the claims of appellant's application for a patent for a device for uncoupling cars.
The alleged invention consists of a rotatable horizontal shaft, with one end bent for use as a handle and the other end connected to a pair of coupling links. One of the links is connected to the shaft and the other to the coupling pin, or coupler lock, as it is called...
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