4. Chemistry: analytical and immunological testing
  5. Including sample preparation
  6. Liberation or purification of sample or separation of...

David H. Steele

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Dynamic mixer screw tip

Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Reexamination Certificate

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Dynamic mixer screw tip

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Reexamination Certificate

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Rapid evaporation method for analysis

Chemistry: analytical and immunological testing – Including sample preparation – Liberation or purification of sample or separation of...
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