SECTION I - CLASS DEFINITION
A. This is the generic class for:
(1) Devices in the form of one or more flexible panel units
(see paragraph B of this section);
(2) Devices in the form of panel units made up for plural strips,
slats, or panels interconnected for relative motion (see paragraph
C of this section);
(3) Devices in the form of panel units or partitions, including
those completely rigid and/or portable, having means combined
therewith for facilitating the passage of insects therethrough in
one direction and preventing or making their passage difficult in
the reverse direction (see subclass 12 and the notes thereunder);
(4) Devices in the form of portable partitioning panel units
(see subclass 351 and the notes thereunder);
(5) Combinations of (1) through (5) with each other, with
rigid panel units, including rigid closures, or with other structure
not elsewhere provided for (see subclass 127 and the notes thereunder).
B. Flexible panel units are considered to be all those in which
a flexible fabric or other flexible sheet material forms the panel
portion, even though it may have a rigid frame, rigid enforcements,
rigid support means for one or more edges thereof, or combinations
of these features.
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