Lifting apparatus, namely, power operated airplane lifts and structural parts thereof [ ; Hydraulic motors, not for land vehicles; Hydraulic drives for machines and motors; Machine wheelwork ]

EXPANSION JOINT SYSTEMS COMPRISING A PAIR OF ELASTOMERIC SEALS RETAINED IN TWO OPPOSING EXTRUDED METAL FRAMES FOR SEALING THE JUNCTURE BETWEEN ADJACENT BUILDING STRUCTURES IN RESPONSE TO SEISMIC AND THERMAL MOVEMENT OF THOSE STRUCTURES