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OBC location system

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent

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Ocean bottom seismic station

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Reexamination Certificate

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Ocean bottom seisometer

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent

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Off-shore seismic prospection method using a coded vibratory sig

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent

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Offshore seismic prospecting method using a hydrophone-geophone

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent

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Oil fill procedure for seismic marine streamer

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent

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On-bottom seismometer electronic system

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent

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Optical methods and systems in marine seismic surveying

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Reexamination Certificate

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Over power supply voltage cut-off circuit

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent

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