Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 5802798 | Set of building elements for framework structures Set of structural elements for producing supporting structures, having supporting bars 5 and cylindrical connecting elements 1 for insertion heads 6 provided on the end sides of the supporting bars 5, the connecting elements being provided with a pluralit... | 09/08/1998 |
