Frontier Airways 1,3,4,5,7

USA

 

1,4,7: plastic bag

    flat base

    white peel off sticky strip at backside

4:        Patent No. 7,041,042

7: U.S. Patent No. 7,041,042

 

3: glossy paper bag

     flat base with coversheet

     vertical tab

straight cut

 

5:  paper bag

     flat base with coversheet

     vertical tab

straight cut

 

4:

7:

1,3,5: