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 |
| 7229541 | Processing solution tank A processing solution tank of forming an agitating flow by flowing and circulating a processing solution in directions opposite to each other between the side of a liquid surface and the side of a tank bottom, in which a guide plate substantially of an arcuate shape... | 06/12/2007 |
| 5264096 | Process for anodic or cathodic electrocoating of strip or profile material Process for anodic or cathodic electrocoating of strip or profile material in which electrical contact is made with the strip or profile material, in which an electrically conductive connection is made from at least one surface of the strip or profile mat... | 11/23/1993 |
| 3997418 | Electrophoretic coating Electrophoretic coating of small ware such as metal fasteners or rivets.... | 12/14/1976 |
