US PATENT SUBCLASS 49 / 120
.~.~.~ Bipartite, center-opening type; e.g., elevator door

Current as of: June, 1999
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49 /   HD   MOVABLE OR REMOVABLE CLOSURES

73.1  DF  CLOSURES INTERCONNECTED FOR CONCURRENT MOVEMENT {9}
116  DF  .~ Opposed similar movement {5}
119  DF  .~.~ Counterbalance effect derived from opposed closure {2}
120.~.~.~ Bipartite, center-opening type; e.g., elevator door

DEFINITION

Classification: 49/120

(under subclass 119) Device wherein the closures move apart in opposite directions from an edge to edge closed position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

366+, for reciprocating, bipartite center-opening closures.