Did You Know...
...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 |
| 6668411 | Mobile elevating gangway for passengers A passenger bridge for facilitating passengers boarding and disembarking a ship includes a first gangway section adjustably suspended within and partly enclosed by a frame of the bridge and sets of wheels for supporting the frame body and to provide maneu... | 12/30/2003 |
