 Using a pump or aerosol spray nozzle, it sprays evenly over the hair.Hair spray was first invented and manufactured in 1948 by Chase Products Company, based in Broadview, Illinois.1948 Cat litter

1948 Halligan bar

1948 Hand dryer

1948 Rogallo wing

The Rogallo wing is a flexible type of airfoil composed of two partial conic surfaces with both cones pointing forward.