MARTIN, Chief Justice.
These are interference proceedings. The appeals have been submitted together, but appeal No. 2018 will be taken up first.
The invention relates to coal-mining machinery, and the issue is defined by a single count, which reads as follows:
"Count. In a machine of the nature described, the combination of a body turnable horizontally, means for turning said body, a tool rotatable on a horizontal axis, mechanism for effecting rotation...
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