Patent 3308918 - 3308918
| United States Patent | Patent Number 3,308,918 |
| Issue Date: | Issued March 14, 1967 |
| Current U.S. Class: | 400/479 - 178/17C - 178/28 - 178/79 - 341/22 - 400/666 |
| Current International Class: | G06F03/09 (20060101) H04L013/00 (20060101) H04L013/16 (20060101) H04L025/40 (20060101) H03M011/02 (20060101) |
| Current CPC Class: | G06F 3/09 (20130101); H03M 11/02 (20130101); H04L 13/16 (20130101); H04L 25/40 (20130101) |
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