US PATENT SUBCLASS 212 / 166
Current as of: June, 1999
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(under the class definition) Apparatus comprising means specifically adapted for raising a door or other closure from above and shifting it laterally.
SEE OR SEARCH CLASS
49, Movable or Removable Closures,
210, and 324+ for a hoist permanently attached to the closure.
176, for a door or cover lifter claimed in combination with a furnace or soaking pit.
202, Distillation: Apparatus,
262+, for door or closure lifters claimed in combination with coke ovens. 414, Material or Article Handling,
684.3, for door removers which include a vertically swinging door-supporting member.