4. Communications, electrical: acoustic wave systems and devices
  5. Echo systems
  6. Returned signal used for control

David Freger

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Method and device for ultrasonic ranging

Communications – electrical: acoustic wave systems and devices – Echo systems – Returned signal used for control
Patent

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Method of monitoring glucose level

Surgery – Diagnostic testing – Measuring or detecting nonradioactive constituent of body...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-620149

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