US PATENT SUBCLASS 52 / 436
.~ Section between integral interfitting means on modules

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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

415  DF  FACERS; E.G., MODULES, MUTUALLY BONDED BY INTERNAL SETTABLE MATERIAL SECTION {13}
436.~ Section between integral interfitting means on modules

DEFINITION

Classification: 52/436

(under subclass 415) Structure wherein the modules include integral edge means which cooperate in interfitting relationship, e.g., tongue and groove, with corresponding complementary integral means on adjacent modules, with the section occupying a space between the complementary means and bonding the modules together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

595, for a module with tongue-and-groove keying means defining an internal space which may receive mortar.