US PATENT SUBCLASS 101 / 13
.~.~ Selective machines

Current as of: June, 1999
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101 /   HD   PRINTING

3.1  DF  EMBOSSING OR PENETRATING {9}
12  DF  .~ Matrix material {3}
13.~.~ Selective machines {2}
14  DF  .~.~.~> Drum series
15  DF  .~.~.~> Multiple-character bar

DEFINITION

Classification: 101/13

(under subclass 12) Machines carrying a supply of printing characters so constructed that different characters may be employed at successive impressions.