US PATENT SUBCLASS 285 / FOR 146
.~.~ Diverse (285/164)

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

FOR 100  DF  SYSTEMS (285/120) {11}
FOR 145  DF  .~ Serial relatively movable joints (285/163) {3}
FOR 146.~.~ Diverse (285/164) {1}
FOR 147  DF  .~.~.~> With telescopic type (285/165)

DEFINITION

Classification: 285/FOR.146

Foreign art collection wherein the movable joints are of diverse kinds, e.g., telescopic and ball and socket. Many patents here disclose joints in exhaust lines for internal-combustion engines, especially aircraft type.