52 A.2d 329 Madera, Appellant, v. Monongahela Railway Co. et al. Supreme Court of Pennsylvania.March 27, 1947. April 14, 1947. Labor Law — Master and servant — Employe — Seniority rights — Basis — Equity — Laches. 1. An employe has no inherent right to seniority in service except as provided for in the contract […]