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 |
| 6072119 | Wall-mounted filter arrangement for blocking high-frequency electromagnetic radiation The invention relates to a filtering device with a filter housing which can accept a filter mat, is covered with a lamella grid on the outlet side and is fitted in an aperture in a mounting wall. RF screening is attained without altering the structure of ... | 06/06/2000 |
