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 |
| 6057029 | Protective window shield for blast mitigation A blast protecting panel for interior portions of building windows includes a blast-shielding panel of a high tensile fiber woven in an open weave fabric in such a manner whereby a high degree of light is transmitted through the fabric while still allowin... | 05/02/2000 |
