US PATENT SUBCLASS 285 / 51
.~.~.~.~ Ball and socket

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

45  DF  WITH CASING, LINING OR PROTECTOR {3}
47  DF  .~ Insulated {1}
48  DF  .~.~ Between serially connected parts {4}
50  DF  .~.~.~ By intermediate joint {2}
51.~.~.~.~ Ball and socket

DEFINITION

Classification: 285/51

(under subclass 50) Subject matter wherein the intermediate joint comprises a ball and socket joint.

SEE OR SEARCH THIS CLASS, SUBCLASS:

261, for a ball and socket joint. See the Search Notes thereunder.