Information The unique controller seen since the Thyssen era is still there. SGBuses.com Photo Gallery: http://www.sgbuses.com. source Previous Post Talking Traction Dover (Moded by ThyssenKrupp) elevator @ the DoubleTree by Hilton San Jose Airport Next Post ThyssenKrupp Signa 4 Hydraulic Elevators – Hampton Inn & Suites – Columbus, MS