Trolleys, Philadelphia kuzamura hydraulic platform, Philadelphia guterura hydraulic platform, Philadelphia ibibuga byimodoka ikorera mu kirere, nibindi birashobora gutegurwa ukurikije ibyo usabwa, turi inyangamugayo, ubwiza nibiciro biri hejuru kandi bihendutse, uruganda rutanga ibibanza kugurisha mu buryo butaziguye