US PATENT SUBCLASS 29 / 890.129
.~.~.~.~ Including metallurgical bonding

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
890.12  DF  .~ Valve or choke making {5}
890.124  DF  .~.~ With assembly, disassembly or composite article making {3}
890.126  DF  .~.~.~ With material shaping or cutting {4}
890.129.~.~.~.~ Including metallurgical bonding

DEFINITION

Classification: 29/890.129

Including metallurgical bonding:

(under subclass 890.126) Process including a metal soldering, welding or brazing step.