US PATENT SUBCLASS 73 / 864.15
.~.~.~.~ With valve for connection to external pressure source

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

863  DF  SAMPLER, SAMPLE HANDLING, ETC. {11}
864  DF  .~ Capture device {9}
864.01  DF  .~.~ Pipette or cannula {7}
864.11  DF  .~.~.~ With suction applying and liquid discharge means {5}
864.15.~.~.~.~ With valve for connection to external pressure source

DEFINITION

Classification: 73/864.15

With valve for connection to external pressure source:

(under subclass 864.11) Subject matter wherein the pressure-controlling means includes a means to open or close communication to a pressure source or ambient air.

(1) Note. An opening intended to be closed by an operator's finger is included here.