共 195 条
- [61] JANSSEN WF, 1940, Patent No. 2219365
- [62] Jira J. W., 1942, US Patent, Patent No. [2-281-843, 2281843]
- [63] Jira J. W., 1948, US Patent, Patent No. [2-440-691, 2440691]
- [64] Jira J. W., 1944, US Patent, Patent No. [2-357-473, 2357473]
- [65] JOHNSON JC, 1945, ELECTRONIC IND, V4, P74
- [66] JUST S, 1929, Patent No. 357122
- [67] KLEEN W, 1943, ELEKTROTECHNISCHE Z, V69, P473
- [68] KLEMT A, 1940, ARCH TECHNISCHES 112
- [69] KLEMT A, 1941, HOCHFREQUENZTECHNIK, V58, P159
- [70] KOOPMAN M, 1925, Patent No. 244284