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- [42] GAS CHROMATOGRAPHY PATENTS, 1952 TO 1963 .1. UNITED-STATES PATENTS JOURNAL OF GAS CHROMATOGRAPHY, 1963, 1 (04): : 24 - 30
- [48] Digests of United States patents relating to radio telegraphy and telephony PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1924, 12 (04): : 497 - 514
- [49] Digests of United States patents relating to radio telegraphy and, telephony PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1925, 13 (05): : 651 - 669
- [50] Digest of United States patents relating to radio telegraphy and telephony PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1921, 9 (04): : 353 - 377