US PATENT SUBCLASS 65 / 153
.~ Concentric body making (e.g., vacuum bottle making, etc.)

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

152  DF  FUSION BONDING MEANS {4}
153.~ Concentric body making (e.g., vacuum bottle making, etc.)

DEFINITION

Classification: 65/153

(under subclass 152) Apparatus including means to hold or assemble parts (e.g., of a vacuum bottle) to be united in a concentric relation.