...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4637407 | Cigarette holder A fire safe, environmentally protective cigarette holder for fully enveloping a lit cigarette and in which an internal power source maintains a flow of air to the lit portion and drives the exhaust smoke through a filter before it is vented to the atmosph... | 01/20/1987 |