BUFFINGTON, Circuit Judge.
In the final analysis, the decisive questions involved in this case are, first, was the invention of the claim disclosed in the original specification? and, second, if not, can the invention of the claim, in use for two years before an amendment disclosing it for the first time, be patented by grafting it onto the original, nondisclosing application?
The duty of careful scrutiny in such cases was referred to by this court in Hestonville...
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