MARTIN, Chief Justice.
This is an appeal from concurrent decisions of the Patent Office rejecting claim 11 of appellant's application for letters patent for an improvement in concrete road machines.
Appellant's device is a concrete road-building machine, comprising a frame supporting various mechanisms, carried by four wheels propelled by a motor. The frame supports a tamper, and at the rear carries a float or finisher, also called a belt. This member is covered...
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