US PATENT SUBCLASS 405 / 54
.~.~ With indicator or alarm means

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

Internet Version by PATENTEC © 1999      Terms of Use


405 /   HD   HYDRAULIC AND EARTH ENGINEERING

52  DF  FLUID CONTROL, TREATMENT, OR CONTAINMENT {7}
53  DF  .~ Fluid storage in earthen cavity {3}
54.~.~ With indicator or alarm means

DEFINITION

Classification: 405/54

With indicator or alarm means:

(under subclass 53) Method or apparatus wherein means are included for sensing a characteristic of the fluid or a change therein and for providing a signal capable of being perceived by the senses.