37 A.2d 263 GEORGE YANIGER v. CALVERT BLDG. CONSTRUCTION CO. [No. 16, April Term, 1944.]Court of Appeals of Maryland. Decided May 4, 1944. Negligence — Invitees — Obvious Dangers. The owner of an office building is not an insurer of invitees, but owes them the duty only to exercise ordinary care to render the premises […]