US PATENT SUBCLASS 228 / 221
.~.~.~ Vacuum

Current as of: June, 1999
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228 /   HD   METAL FUSION BONDING

101  DF  PROCESS {38}
214  DF  .~ With protecting of work or filler or applying flux {5}
218  DF  .~.~ Using gas, vapor, vacuum, or reactive flame {2}
221.~.~.~ Vacuum

DEFINITION

Classification: 228/221

(under subclass 218) Process as set forth under clause (2) of that definition.