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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21/00
Use of propulsion power plant or units on vessels
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B63H21/32
Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
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B63H21/34
having exhaust-gas deflecting means
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