US PATENT SUBCLASS 29 / 889.7
.~.~ Blade making

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
889  DF  .~ Impeller making {7}
889.7.~.~ Blade making {2}
889.71  DF  .~.~.~> Composite blade
889.72  DF  .~.~.~> Hollow blade {1}

DEFINITION

Classification: 29/889.7

Blade making:

(under subclass 889) Process of manufacturing the individual fluid flow interacting members utilized in an impeller device.

SEE OR SEARCH CLASS

416, Fluid Reaction Surfaces (i.e., Impellers),

223+, for specific blade structure.