US PATENT SUBCLASS 404 / 26
.~.~ Elevation or level adjustment

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

17  DF  PAVEMENT {9}
25  DF  .~ Vault cover-closure {1}
26.~.~ Elevation or level adjustment

DEFINITION

Classification: 404/26

(under subclass 25) Vault cover-closure structure including means to vary the relative height or angularity of the cover structure with respect to the pavement.

SEE OR SEARCH CLASS

49, Movable or Removable Closures,

505, for an expandable or contractable frame.