US PATENT SUBCLASS 83 / 911
ENVELOPE BLANK FORMING
Current as of: June, 1999
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DEFINITION
Classification: 83/911
Performing die cutting, or a succession of cutting and notching operations, to produce a flat piece of paper of suitable contour for later folding and gluing into envelope form.
SEE OR SEARCH THIS CLASS, SUBCLASS:
300, and 303, for an envelope blank cutter of the flying type.
SEE OR SEARCH CLASS
493, Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web,
186+, for an envelope machine in general.
