RICH, Judge.
The sole issue is whether a majority of the Patent Office Board of Appeals erred in overturning a consistent administrative practice and interpretation of the law of nearly forty years standing by giving a United States patent effect as prior art as of a foreign filing date to which the patentee of the reference was entitled under 35 U.S.C. § 119.
Because it held that a U. S. patent, cited as a prior art reference under 35 U.S.C. ...
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