US PATENT SUBCLASS 242 / 610.3
.~.~.~.~ Crimped or hemmed

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

570  DF  COIL HOLDER OR SUPPORT (E.G., SPINDLE, DISPENSER, OR SPOOL) {6}
600  DF  .~ Spool or core {12}
610  DF  .~.~ Particular material or material treatment {4}
610.1  DF  .~.~.~ Sheet stock {2}
610.3.~.~.~.~ Crimped or hemmed

DEFINITION

Classification: 242/610.3

Crimped or hemmed:

(under subclass 610.1) Subject matter wherein the sheet stock is strengthened by a reverse fold, bend, or corrugation.