US PATENT SUBCLASS 600 / 487
.~.~.~.~ Pressure indicator includes liquid column

Current as of: June, 1999
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600 /   HD   SURGERY

300  DF  DIAGNOSTIC TESTING {38}
481  DF  .~ Cardiovascular {6}
485  DF  .~.~ Measuring pressure in heart or blood vessel {3}
486  DF  .~.~.~ Testing means inserted in body {2}
487.~.~.~.~ Pressure indicator includes liquid column

DEFINITION

Classification: 600/487

Pressure indicator includes liquid column:

(under subclass 486) Subject matter wherein a pressure indicator including a column of fluid is connected to the testing means (e.g., a tube) placed in a blood vessel.