US PATENT SUBCLASS 403 / 54
.~.~ Three or more parallel axes

Current as of: June, 1999
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403 /   HD   JOINTS AND CONNECTIONS

52  DF  ARTICULATED MEMBERS {13}
53  DF  .~ Plural distinct articulation axes {7}
54.~.~ Three or more parallel axes

DEFINITION

Classification: 403/54

(under subclass 53) Structure comprising at least four members united by three distinct connections and movable about at least three parallel axes.