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ROBILLARD PHILIPPE EDOUARD
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ROBILLARD PHILIPPE EDOUARD
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B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
B63C11/48—Means for searching for underwater objects
B63C11/50—Means for searching for underwater objects using grapnels
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FR322753D1902-07-031902-07-03Système de grappin pour dégager les hamecons au fond de l'eau
ExpiredFR322753A
(fr)
Perfectionnements dans les installations hydrauliques en général, pour obtenir de grands volumes d'eau et empecher automatiquement la congélation de l'eau
Installation pour opérer la concentration de solutions au moyen de la congélation de ces dernières et de la séparation des solution concentrées d'avec les cristaux de glace