US PATENT SUBCLASS 73 / 864.17
.~.~.~.~.~ Plural

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}
864.16  DF  .~.~.~.~ Piston and cylinder {2}
864.17.~.~.~.~.~ Plural

DEFINITION

Classification: 73/864.17

Plural:

(under subclass 864.16) Subject matter including more than one piston and cylinder expansible chamber.