Ships – Apparatus held by or attached to rider to control sailboard... – Foot strap means
Patent
1992-02-13
1993-01-26
Swinehart, Edwin L.
Ships
Apparatus held by or attached to rider to control sailboard...
Foot strap means
114106, B63B 3500
Patent
active
051814773
ABSTRACT:
A boom for a sailing vessel has a forked forward portion hinged to the mast at spaced locations to permit rotation or swinging of the boom only in a horizontal plane.
REFERENCES:
patent: 2561253 (1951-07-01), Wells-Coates
patent: 3331348 (1967-07-01), Dyer
patent: 4679520 (1987-07-01), Harken
patent: 4723498 (1988-02-01), Stampe
patent: 4811677 (1989-03-01), Pederson et al.
Hall Eric R. D.
Harken Olaf T.
Kramers S. Dirk
Harken, Inc.
Swinehart Edwin L.
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