Adopting standard of review for decisions of Patent Office set forth in Morgan v. Daniels, 153 U.S. 120, 125, i.e., finding of fact made by TTAB "must be accepted as controlling, unless the contrary is established by evidence `which, in character and amount carries thorough conviction'"
Finding similarity between furniture and "general merchandise store services," and rejecting the distinction between goods and services as having "little or no legal significance"