Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 4002022 | Electro-mechanical sign structure with alternating faces formed by several adjacent dihedral angles An electro-mechanical sign which alternatively exhibits two different kinds of information, for example clock or sign display information, on two respective faces of several adjacent dihedral angles.... | 01/11/1977 |
