US PATENT SUBCLASS 412 / 38
.~.~ Perforated sheet binder

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.~.~ Perforated sheet binder {4}
39  DF  .~.~.~> Wire comb applier
40  DF  .~.~.~> Plastic comb applier {1}
42  DF  .~.~.~> Singular ring or ringlike element applier
43  DF  .~.~.~> Singular or postlike element applier

DEFINITION

Classification: 412/38

Perforated sheet(*) binder:

(under subclass 33) Apparatus specially adapted for applying a fastener to sheets(*), signatures(*), or quires(*) having a fastener receiving hole punched through their thickness dimension in an area other than the bound edge of the sheets, signatures or quires.

SEE OR SEARCH CLASS

83, Cutting, appropriate subclasses for perforating sheets, preparatory to binding them, and saw means used in notching edges of sheets prepatory to binding.

408, Cutting by Use of Rotating Axially Moving Tool,

72+, for the combination of drilling means with a work support, used in the making of books.