US PATENT SUBCLASS 33 / 621
.~.~.~.~ Plate registration with respect to plate support

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

501  DF  GAUGE {61}
613  DF  .~ Collocating {14}
614  DF  .~.~ Printing member registration {4}
617  DF  .~.~.~ Printing type or plate {4}
621.~.~.~.~ Plate registration with respect to plate support

DEFINITION

Classification: 33/621

Plate registration with respect to plate support:

(under subclass 617) Subject matter which includes a flat, sheet-like printing element and its support wherein the contact member contacts the printing element or its support to align or check the alignment of the printing element with respect to its support.