4. Chemical apparatus and process disinfecting, deodorizing, preser
  5. Control element responsive to a sensed operating condition

Howard Keith Spencer

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Pipette tip for easy mounting and ejecting from a pipette

Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Reexamination Certificate

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Pipette tip with an internal sleeve and method for forming same

Measuring and testing – Moisture content or absorption characteristic of material
Reexamination Certificate

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Pipette tip with an internal sleeve and stabilizing projections

Measuring and testing – Sampler – sample handling – etc. – Capture device
Reexamination Certificate

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