1. Early zippers were used
d. mainly on practical objects.
3. Soldiers used the fastener
g. on military equipment.
c. used fasteners on its products.
e. introduce the name to customers.
b. became popular during the 1920s.
7. Clothing companies later added zippers
h. to trousers, jackets and dresses.
8. Bags became easier to close
a. with the new fastener.