US PATENT SUBCLASS 144 / 93.1
.~ Special work

Current as of: June, 1999
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144 /   HD   WOODWORKING

92  DF  BORING MACHINE {6}
93.1.~ Special work {1}
93.2  DF  .~.~> Last

DEFINITION

Classification: 144/93.1

Special work:

(under subclass 92) Machine, not otherwise classified, designed to work on some special article (e.g., to bore a chair-seat, spool, or shoe-lasts) and not adapted, without modification, for a general boring purpose.