US PATENT SUBCLASS 416 / 19
SINGLE BLADE ROTARY IMPELLER WITH COUNTERBALANCE
Current as of:
June, 1999
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416 /
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FLUID REACTION SURFACES (I.E., IMPELLERS)
19
SINGLE BLADE ROTARY IMPELLER WITH COUNTERBALANCE
DEFINITION
Classification: 416/19
(under the class definition) Apparatus comprising an impeller consisting of a single working member and provided with a mass arranged to counter-balance the mass of the working member.
