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 |
| 5150627 | Control device for a tiltable mounting head A control device for a tiltable mounting head, such as the mounting head for a camera, includes a pantographic-type linkage. The angular position of an arm (24) supporting the mounting head (26) is controlled relative to a locating arm (12), whose remote ... | 09/29/1992 |
