RICH, Judge.
This appeal is from the decision of the Patent and Trademark Office (PTO) Board of Appeals affirming the rejections of claims 6-10, all the claims in application serial No. 61,417, filed August 5, 1970, for reissue of appellants' Patent No. 3,166,688, issued January 19, 1965, entitled "Polytetrafluoroethylene Tubing Having Electrically Conductive Properties." The application is a division of application serial No. 802,295, filed February 14, 1969, for...
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