US PATENT SUBCLASS 285 / FOR 116
.~.~.~.~ Ball and socket (285/135)

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

FOR 100  DF  SYSTEMS (285/120) {11}
FOR 111  DF  .~ Plural noncommunicating paths (285/131) {4}
FOR 113  DF  .~.~ Concentric (285/133.1) {2}
FOR 115  DF  .~.~.~ With relative motion (e.g., drier drum type) (285/134) {1}
FOR 116.~.~.~.~ Ball and socket (285/135)

DEFINITION

Classification: 285/FOR.116

Foreign art collection wherein the relative motion is obtained at least in part by ball and socket means.