What was bubble wrap invented for?

Duck Max Strength Bubble Cushioning Wrap for Moving & Shipping, 15 FT Large Bubble Packing Wrap, Heavy Duty Protection for Mailing & Packaging Boxes

Bubble Wrap (16 x 7ft) - Dan The Mover

Bubble Wrap Roll, 24 x 750', 3/16 Bubble, Perforated

Sealed Air SEL48561 Recycled Bubble Wrap, 5/16 Thick, 12 x 100ft

The Surprising Truth! Which Side of Bubble Wrap Should You Use? — Fast Direct Packaging

Bubble Wrap - what are the Properties in the United Kingdom

Scotch Cushion Wrap, 12 x 240', 240 sq. ft., 1 Roll/Pack - Sam's Club

Paper Bubble Wrapping

Basics Perforated Bubble Cushioning Wrap, Large, Clear, 5/16, 12-Inch x 100-Foot Long Roll

Office Depot Brand Small Bubble Cushioning 316 Thick Clear 12 x 20 - Office Depot