(under subclass 87) Tracks or track devices for sliding panels of either rigid or flexible nature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
94, for tracks of this type combined with supporting brackets and see the notes appended thereto.
95, for covered tracks of this type, and see the notes appended thereto.
SEE OR SEARCH CLASS
104, Railways,
89, 111 for suspended railway structures and particularly subclass 106 for the suspended rail structures with or without their supports. 238, Railways: Surface Track,
238, appropriate subclasses for railway surface track.
