US PATENT SUBCLASS 73 / 441
.~ Portable hand manipulable syringe type

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

32 R  DF  SPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID {7}
441.~ Portable hand manipulable syringe type {1}
442  DF  .~.~> With thermometer {1}

DEFINITION

Classification: 73/441

(under subclass 32) Devices including a chamber of barrel, usually transparent, containing a free float, and hand manipulable means to draw the test fluid into the chamber.