US PATENT SUBCLASS 420 / 5
.~ Magnesium base

Current as of: June, 1999
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420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

1  DF  RADIOACTIVE {5}
5.~ Magnesium base

DEFINITION

Classification: 420/5

Magnesium base:

Alloy or metallic composition under subclass I which contains over 50 percent magnesium.