...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.
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| Number | Title | Issue Date |
| 4057182 | Motorcycle carriers Apparatus for restricting the motion of a motorcycle while it is being carried by a pickup truck or similar vehicle is disclosed. Such vehicles are of the type having a bed which includes a horizontal load-bearing portion and one or more sidewall portions... | 11/08/1977 |