VAN ORSDEL, Associate Justice.
This appeal is from the decision of the Board of Patent Appeals on a reissue application for a patent granted appellants March 9, 1920.
The claims, eight in number, are sufficiently described by claims 1, 4, 7, and 8, as follows:
"1. The method of welding segments of hollow articles which consists in pressing said segments at the edges between electrodes bearing on the outer faces of the segments while holding said edges...
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