(under subclass 381.1) Apparatus particularly adapted to provide access into a cover comprised of upper and lower planar sheets which, before access to the package, engaged each other and were united at their perimeters, which cover was intended to hold sheet-like goods.
(1) Note. An "envelope" with a bellows or gusset is not included herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
569, for apparatus for forming and filling a letter-type envelope.
