"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 5363525 | Ceiling wire tool An apparatus (26) for attaching a screw-type fastener (64) and wire (70) to an overhead support structure (72) for hanging suspended ceilings is disclosed. The apparatus (26), which is coupled to an extension pole (74) and driven by a source of rotary pow... | 11/15/1994 |