US PATENT SUBCLASS 137 / 81.2
.~ Underwater


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

78.1  DF  AMBIENT CONDITION CHANGE RESPONSIVE {4}
81.2.~ Underwater


DEFINITION

Classification: 137/81.2

Underwater:

(under subclass 78.1) Apparatus in which control of a flow of fluid is responsive to a variation in a condition of, or in an environment beneath the surface of a body of water.