US PATENT SUBCLASS 73 / 864.61
.~.~.~ Fluid displacement

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}
864.51  DF  .~.~ Receptacle type {5}
864.61.~.~.~ Fluid displacement

DEFINITION

Classification: 73/864.61

Fluid displacement:

(under subclass 864.51) Subject matter wherein the receptacle contains a fluid immiscible with the sample, and the sample is caused to enter the container by controlled removal of the fluid (can be air) from the receptacle.