共 29 条
- [1] ARNOLD HD, 1923, B SYS TECH J OCT
- [2] BEST FH, 1924, J A I E E FEB
- [3] BOWN CD, 1923, P I R E APR
- [4] Campbell G. A., 1917, U.S. patent, Patent No. [US1227114A, 1227114]
- [5] CAMPBELL GA, 1911, T A I E E, V30, P873
- [6] CAMPBELL GA, 1917, Patent No. 1227113
- [7] CAMPBELL GA, 1922, B SYS TECH J NOV
- [8] CARSON JR, 1923, B SYS TECH J JUL
- [9] CASPER WL, 1924, J A I E E MAR
- [10] CLEMENT LM, 1921, P I R E MAY