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 |
| 6025027 | Method for producing cellulose insulation materials using liquid borate fire retardant compositions A method for producing an improved fire retarding compound for use with cellulose insulation materials uses the same concept as boric acid and borax, but substitutes liquid borates rather than powdered borates. Such liquid borates enables the amount of ch... | 02/15/2000 |
