| http://www.w3.org/ns/prov#value | - 20140314520Watercraft locking assembly - A detachable fin is secured to a socket imbedded into the bottom layer of a watercraft such as a surfboard, wind surf board, standup paddle board, or kayak for example, by a mechanism including a screw whose head which is captured into a slot in the socket, and which passes through a hole in a spur projecting from the portion of the fin inserted into the sl
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