US PATENT SUBCLASS 148 / 904
.~ Crankshaft

Current as of: June, 1999
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148 /   HD   METAL TREATMENT

902  DF  HAVING PORTIONS OF DIFFERING METALLURGICAL PROPERTIES OR CHARACTERISTICS {8}
904.~ Crankshaft

DEFINITION

Classification: 148/904

Crankshaft:

(under subclass 902) Art collection wherein the stock material is a crankshaft.