4. Measuring, testing, or signalling instruments
  5. Measuring, regulating or indicating instrument, or casing
  6. Food preparation type

Raphael J. Marzean

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Dash mounted sonar depth indicator

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Food preparation type
Patent

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Flasher-type fish finder with zoom feature

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Reexamination Certificate

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Gimbal mounted sonar depth indicator

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Food preparation type
Patent

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Method for distinguishing return echoes from noise

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

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Profile ID: LFUS-PAI-P-896451

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