US PATENT SUBCLASS 110 / 176
.~ Operators


Current as of: June, 1999
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110 /   HD   FURNACES

173 R  DF  DOORS {7}
176.~ Operators {2}
177  DF  .~.~> Motor
178  DF  .~.~> Pedal


DEFINITION

Classification: 110/176

(under subclass 173) Devices for opening and closing doors aside from the ordinary latch.

SEE OR SEARCH CLASS

49, Movable or Removable Closures,

324+, for other closure operators.

212, Traversing Hoists,

166, for discrete apparatus for removing a furnace door from above and shifting it horizontally. 414, Material or Article Handling,

684.3, for furnace door removers which are disengaged from the furnace door after replacement.