ROSARIO SANTOS VDA. DE BONIFACIO, VIRGINIA BONIFACIO, ROSALINDA BONIFACIO, ROMEO BONIFACIO, ZENAIDA BONIFACIO, GENEROSO BONIFACIO, ANDRES BONIFACIO, JOSE BONIFACIO, JOVITO BONIFACIO, JR., CORAZON BONIFACIO, ALBERTO CONCEPCION, AGUSTIN ANGELES and ELISA ANGELES, Plaintiffs-Appellees, v. B. L. T. BUS CO., INC., as Successors of LAGUNA TAYABAS BUS COMPANY and SERGIO DE LUNA, Defendants-Appellants