US PATENT SUBCLASS 144 / 79
.~.~ Portable

Current as of: June, 1999
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144 /   HD   WOODWORKING

75  DF  MORTISING MACHINE HAVING CHISEL {5}
78  DF  .~ Hollow chisel and bit {1}
79.~.~ Portable

DEFINITION

Classification: 144/79

Portable:

(under subclass 78) Hollow-chisel and bit machine adapted to be moved about and placed upon the work, generally clamped thereto.

(1) Note. The cutter-carriage is usually fed along instead of feeding the work, as in a stationary machine.