US PATENT SUBCLASS 53 / 555
.~.~.~ Simultaneously longitudinal and transverse seaming

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

545  DF  PROGRESSIVELY SEAMED COVER WEB OR WEB FOLDS {3}
548  DF  .~ With closing of web between package units {3}
553  DF  .~.~ Plural webs {2}
555.~.~.~ Simultaneously longitudinal and transverse seaming

DEFINITION

Classification: 53/555

Simultaneously longitudinal and transverse seaming:

(under subclass 533) Apparatus in which a longitudinal and transverse seam is made simultaneously to completely isolate the contents.