US PATENT SUBCLASS 52 / 90.2
.~ On existing roof


Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

90.1  DF  INCLINED TOP COVER (E.G., ROOF, A-FRAME) {4}
90.2.~ On existing roof


DEFINITION

Classification: 52/90.2

On existing roof:

(under subclass 90.1) Inclined cover which is erected on a previously built cover.