Number | Date | Country | Kind |
---|---|---|---|
54-12806 | Feb 1979 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4143263 | Eichweber | Mar 1979 |
Number | Date | Country |
---|---|---|
2012949 | Mar 1979 | GBX |
Entry |
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M. Matsushita et al., "PCM-400M System Test Sets", Sep.-Oct. 1976, Review of the Electrical Comm. Laboratories, vol. 24, N.T.T. #9-10, pp. 802-811. |