HATFIELD, Associate Judge.
This is an appeal from the decision of the Board of Appeals of the United States Patent Office rejecting all of the claims (7 to 13, inclusive) in appellant's application for a patent for an alleged invention relating to improvements in the method of flame hardening shafts.
With the exception of claim 12, which is not expressly limited to "flame hardening," claim 9 is illustrative of the appealed claims. It reads: "9. The method...
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