US PATENT SUBCLASS 73 / 183
.~.~.~ With integrating means

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

178 R  DF  NAVIGATION {5}
181  DF  .~ Ship's log {4}
182  DF  .~.~ Pressure differential type {1}
183.~.~.~ With integrating means

DEFINITION

Classification: 73/183

(under subclass 182) Logs wherein the pressure differential is integrated with respect to time to determine the total relative distance traveled.

SEE OR SEARCH THIS CLASS, SUBCLASS:

861.43+, for pressure differential flow meters of general application having integrating means.

SEE OR SEARCH CLASS

235, Registers, particularly

61+, for integrating means, per se.