US PATENT SUBCLASS 137 / 68.18
.~.~ With alarm or indicator

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

Internet Version by PATENTEC © 1999      Terms of Use


137 /   HD   FLUID HANDLING

67  DF  DESTRUCTIBLE OR DEFORMABLE ELEMENT CONTROLLED {2}
68.11  DF  .~ Destructible element {9}
68.18.~.~ With alarm or indicator

DEFINITION

Classification: 137/68.18

With alarm or indicator:

(under subclass 68.11) Subject matter that includes a sensing means that sends a signal when the element breaks.