4. Communications, electrical: acoustic wave systems and devices
  5. Signal transducers
  6. Underwater type

Jeffery E. Griffin

Attorney

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Apparatus and method for inserting and retrieving a tool...

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
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Booster

Ammunition and explosives – Igniting devices and systems – Fuse cord
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Deviated borehole drilling assembly

Wells – Wells with lateral conduits
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Method and apparatus for controlling the acoustic output of...

Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
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Method and apparatus for controlling the acoustic output of...

Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
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Profile ID: LFUS-PAI-P-2372782

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