Buoys – rafts – and aquatic devices – Water skimming or walking device – Surfboard
Reexamination Certificate
2011-05-10
2011-05-10
Swinehart, Ed (Department: 3617)
Buoys, rafts, and aquatic devices
Water skimming or walking device
Surfboard
Reexamination Certificate
active
07938705
ABSTRACT:
A waterboard with externally adjustable stiffness includes a stringer assembly having a rotatable beam to modulate the stiffness of the beam in a selected direction to impart a desired stiffness to the waterboard.
REFERENCES:
patent: 6036560 (2000-03-01), Pekar
Swinehart Ed
Wham-O, Inc.
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