US PATENT SUBCLASS 501 / 38
.~.~.~ Titanium or zirconium containing

Current as of: June, 1999
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501 /   HD   COMPOSITIONS: CERAMIC

1  DF  CERAMIC COMPOSITIONS {15}
11  DF  .~ Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions {11}
35  DF  .~.~ Fibers {3}
38.~.~.~ Titanium or zirconium containing

DEFINITION

Classification: 501/38

Titanium or zirconium containing:

(under subclass 35) Fibers comprising titanium, zirconium, or a compound of one of these elements.