using sails or like wind-catching surfaces (sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing B63H8/00)

Full Title

Marine propulsion provided directly by wind power (wind-motors driving underwater propulsive elements B63H13/00) > using sails or like wind-catching surfaces (sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing B63H8/00)

Child Classifications

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• B63H 9/06 Types of sail; Constructional features of sails; Arrangements thereof on vessels
• B63H 9/08 Connections of sails to masts, spars, or the like