US PATENT SUBCLASS 52 / 590.1
.~.~ Dovetail-type key

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

578  DF  MODULE OR PANEL HAVING DISCRETE EDGEWISE OR FACE-TO-FACE CONNECTING FEATURE {6}
589.1  DF  .~ Having integral key {3}
590.1.~.~ Dovetail-type key {2}
590.2  DF  .~.~.~> Keys, mortises, or key and mortise on opposed faces or edges
590.3  DF  .~.~.~> Having mortise with internal space

DEFINITION

Classification: 52/590.1

Dovetail-type key:

(under subclass 589.1) Integral key wherein the unit has a fan-shaped projection or indentation (e.g., mortise) that mates with an identical indentation or projection of an

adjacent unit.