US PATENT SUBCLASS 16 / 61
.~.~ Spring and flexible link

Current as of: June, 1999
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16 /   HD   MISCELLANEOUS HARDWARE

49  DF  CHECKS AND CLOSERS {6}
51  DF  .~ Liquid {8}
61.~.~ Spring and flexible link

DEFINITION

Classification: 16/61

(under subclass 51) Devices in which the closing devices include springs and flexible links.

SEE OR SEARCH THIS CLASS, SUBCLASS:

63, for springs and flexible link checks, per se.

78, for spring and flexible link type door closers.