Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7067013 | Method and plant for the production of refined sugar from a sugared juice Method for producing refined sugar from sugared juice, such as raw juice from sugar cane or from sugar beet, containing sugar and impurities, which comprises the operations of: tangential filtration of the sugared juice in order to... | 06/27/2006 |
