US PATENT SUBCLASS 270 / 58.24
.~.~.~ By suction

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

52.01  DF  ASSOCIATING OR DISASSOCIATING {11}
58.01  DF  .~ Sheet associating {13}
58.23  DF  .~.~ Sheets received from plural supplies {3}
58.24.~.~.~ By suction

DEFINITION

Classification: 270/58.24

By suction:

(under subclass 58.23) Subject matter wherein at least one of

the supply sources includes an element having a surface, through the surface of which element a vacuum or subatmospheric pressure is applied to facilitate in engaging and pulling the sheets to the surface of the element to remove the sheets from the supply.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52.24, and 52.28, for opening the signature by suction.