US PATENT SUBCLASS 362 / 146
.~ Staircase

Current as of: June, 1999
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362 /   HD   ILLUMINATION

145  DF  WITH STATIC STRUCTURE {6}
146.~ Staircase

DEFINITION

Classification: 362/146

(under subclass 145) Subject matter wherein the component is part of a flight of stairs, its supporting framework, casing, baluster or railing.