Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B63
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
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B63H
MARINE PROPULSION OR STEERING
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5/00
Arrangements on vessels of propulsion elements directly acting on water
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B63H5/02
of paddle wheels, e.g. of stern wheels
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B63H5/03
movably mounted with respect to the hull, e.g. having means to reposition paddle wheel assembly, or to retract paddle or to change paddle attitude
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