A practical depth telemeter for midwater trawls.
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| Main Author: | |
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| Format: | Texto biblioteca |
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| Published: |
1959
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| Subjects: | TRAWLERS, DEPTH, MEASURING INSTRUMENTS, FISHING GEAR, CHALUTIER, PROFONDEUR, INSTRUMENT DE MESURE, ENGIN DE PECHE, BARCOS PARA PESCA A LA RASTRA, PROFUNDIDAD, INSTRUMENTOS DE MEDICION, EQUIPO DE PESCA, |
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