|
Patents for B63B 41 - Drop keels, e.g. centre boards or side boards (421) |
---|
10/15/1980 | EP0017231A1 Vertically movable centre board for a surf sail board | 04/22/1980 | CA1075977A1 Barge dagger skegs | 01/23/1980 | EP0006912A1 Keels | 10/02/1979 | CA1063308A1 Process for reinforcing plastic material and products therefrom | 09/11/1979 | US4167050 Vertical stabilizer for kayak | 08/21/1979 | CA1060722A1 Sailing vessels | 03/22/1979 | WO1979000151A1 Keels | 02/13/1979 | CA1048350A1 Hydrofoil vessel | 10/03/1978 | US4117797 Mast and keel movement for sailing vessels | 02/21/1978 | US4074646 Variable foil keel and sail boat | 01/10/1978 | US4067280 Sailboat control apparatus | 12/06/1977 | US4061104 Hydrofoil vessel | 08/30/1977 | US4044703 Sailboat control apparatus | 08/30/1977 | US4044416 Surfboard with adjustable fin | 06/14/1977 | US4029037 Process for reinforcing plastic material and products therefrom | 12/14/1976 | US3996875 Intregral hydraulic pump and wheel steering mechanism for sailboats | 12/14/1976 | US3996872 Hydrofoil vessel | 08/03/1976 | US3972300 Sailing craft | 07/13/1976 | US3968765 Rotatable-mounting apparatus for sails | 04/20/1976 | US3951090 Hydraulic system for raising and lowering keel | 03/30/1976 | US3946693 Removable inboard rudder |
|