Patent classifications
H
ELECTRICITY
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H02
GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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H02K
DYNAMO-ELECTRIC MACHINES
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9/00
Arrangements for cooling or ventilating
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H02K9/10
by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
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H02K9/12
wherein the cooling medium circulates freely within the casing
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