Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F03
MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
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F03B
MACHINES OR ENGINES FOR LIQUIDS
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3/00
Machines or engines of reaction type; Parts or details peculiar thereto
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F03B3/12
Blades; Blade-carrying rotors
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F03B3/121
Blades, their form or construction
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F03B3/123
specially designed as adjustable blades, e.g. for Kaplan-type turbines
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