SMITH, Judge.
This appeal is from a decision of the Patent Office Board of Appeals which affirmed the examiner's rejection of claims 1-5, inclusive, of appellant's application serial No. 536,086 for a method of forming hollow, frusto-conical articles from flat metal stock. The claims were rejected under 35 U.S.C. § 103 as being obvious in view of the following references:
Kelley et al. 1,901,035 Mar. 14, 1933 Lindgren Re. 19,790 Dec...
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