4. Optics: measuring and testing
  5. For size of particles

Donald R. Pettit

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Apparatus and method for sizing particles

Optics: measuring and testing – For size of particles
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Method and apparatus for monitoring oxygen partial pressure...

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
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Self-advancing step-tap tool

Cutting by use of rotating axially moving tool – Tool or tool with support – With pitch-stabilizing ridge
Reexamination Certificate

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Self-advancing step-tap tool

Cutting by use of rotating axially moving tool – Tool or tool with support – With pitch-stabilizing ridge
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1758283

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