US PATENT SUBCLASS 412 / 41
.~.~.~.~ And heat sealer

Current as of: June, 1999
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412 /   HD   BOOKBINDING: PROCESS AND APPARATUS

9  DF  APPARATUS {10}
33  DF  .~ Edge binding apparatus {5}
38  DF  .~.~ Perforated sheet binder {4}
40  DF  .~.~.~ Plastic comb applier {1}
41.~.~.~.~ And heat sealer

DEFINITION

Classification: 412/41

And heat sealer:

(under subclass 40) Apparatus wherein the fastener is

composed of thermoplastic material and further wherein the apparatus is provided with means capable of melting a portion of said thermoplastic material.