US PATENT SUBCLASS 270 / 52.25
.~.~.~.~ By gripping

Current as of: June, 1999
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270 /   HD   SHEET-MATERIAL ASSOCIATING

52.01  DF  ASSOCIATING OR DISASSOCIATING {11}
52.14  DF  .~ Signature associating {7}
52.19  DF  .~.~ Insetting {3}
52.23  DF  .~.~.~ Signature opener {2}
52.25.~.~.~.~ By gripping

DEFINITION

Classification: 270/52.25

By gripping:

(under subclass 52.23) Subject matter wherein the signature opener includes at least two elements having opposed surfaces between which surfaces one side of the signature is placed and the elements are urged toward one another and one side of the signature is firmly grasped by the surfaces and pulled away with respect to the other side of the signature.