What do all of these famous inventions have in common: air conditioning, airbags, bandages, barbed wire, blow dryers, can openers, cement, chewing gum, computers, credit cards, doughnuts, jeans,... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.