US PATENT SUBCLASS 65 / 424
.~.~ Inert, nonoxidizing, or reducing environment

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

376  DF  PROCESSES OF MANUFACTURING FIBERS, FILAMENTS, OR PREFORMS {18}
385  DF  .~ Process of manufacturing optical fibers, waveguides, or preforms thereof {29}
424.~.~ Inert, nonoxidizing, or reducing environment

DEFINITION

Classification: 65/424

Inert, nonoxidizing, or reducing environment:

(under subclass 385) Processes wherein the reactive

conditions or atmosphere (a) is inactive, (b) does not support oxidation, or (c) does support reduction.