Underwater vessels, e.g. submarines; (submarine hulls B63B3/13; diving chambers with mechanical link, e.g. cable, to a base B63C11/34; divers' sleds B63C11/46; torpedoes F42B19/00)

Child Classifications

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• B63G 8/001
• B63G 8/04 Superstructure
• B63G 8/08 Propulsion ( nuclear propulsion B63H21/18; submerged exhausting apparatus F01N13/12)
• B63G 8/14 Control of attitude or depth (of torpedoes F42B19/00)
• B63G 8/28 Arrangement of offensive or defensive equipment
• B63G 8/36 Adaptations of ventilation, cooling, heating, or air-conditioning (reconditioning air in sealed chambers A62B11/00)
• B63G 8/38 Arrangement of visual or electronic watch equipment, e.g. of periscopes, of radar
• B63G 8/39 Arrangements of sonic watch equipment, e.g. low-frequency, sonar
• B63G 8/40 Rescue equipment for personnel (life-saving in water, not specially adapted for submarine personnel B63C)
• B63G 8/42 Towed underwater vessels