US PATENT SUBCLASS 285 / 291.1
.~ Having screw interlock


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



285 /   HD   PIPE JOINTS OR COUPLINGS

285.1  DF  MOLDED JOINT {11}
291.1.~ Having screw interlock {1}
291.2  DF  .~.~> Having interrupted thread


DEFINITION

Classification: 285/291.1

Having screw interlock:

(under subclass 285.1) Subject matter wherein the ends of the members are additionally held together by means having a helical thread.