US PATENT SUBCLASS 73 / 712
.~ With recorder

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

700  DF  FLUID PRESSURE GAUGE {20}
712.~ With recorder

DEFINITION

Classification: 73/712

With recorder:

(under subclass 700) Subject matter with means to make a permanent chronological entry of the fluid pressure measured.