US PATENT SUBCLASS 220 / 297
.~.~.~ Keyhole slot

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
288  DF  .~ Removable closure guided in rotary movement (e.g., screw) {6}
293  DF  .~.~ Quick removal (e.g., bayonet) {7}
297.~.~.~ Keyhole slot

DEFINITION

Classification: 220/297

(under subclass 293) Device wherein the interlocking means includes a headed stud projecting into a coacting slot, said slot having one end thereof designed to receive the headed stud and the opposite end thereof designed to retain the stud.