US PATENT SUBCLASS 404 / 23
.~.~ With removable lens

Current as of: June, 1999
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404 /   HD   ROAD STRUCTURE, PROCESS, OR APPARATUS

17  DF  PAVEMENT {9}
22  DF  .~ Including light admitting means {2}
23.~.~ With removable lens

DEFINITION

Classification: 404/23

(under subclass 22) Light admitting structure wherein the light admitting element is replaceable without destruction of the supporting structure.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements,

642+, for lens elements, per se, and lens housings of general utility.