共 50 条
- [31] A DIRECT-READING RATE METER FOR HIGH-INTENSITY PENETRATING RADIATION REVIEW OF SCIENTIFIC INSTRUMENTS, 1953, 24 (10): : 938 - 943
- [32] A DIRECT-READING MICRODENSITOMETER JOURNAL OF SCIENTIFIC INSTRUMENTS, 1953, 30 (08): : 268 - 270
- [33] WIDE-RANGE DIRECT-READING PRECISION FREQUENCY METER AND SIGNAL SOURCE PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1951, 39 (03): : 295 - 295
- [37] DIRECT-READING WAVEMETERS PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1947, 35 (02): : 179 - 179
- [38] NEW DIRECT-READING ATTACHMENT FOR 20 IN CAMERA - 3 METER CONCAVE GRATING SPECTROGRAPH SPECTROCHIMICA ACTA, 1958, 10 (03): : 330 - 330
- [39] A DIRECT-READING PHOTOELECTRIC DENSITOMETER JOURNAL OF THE SOCIETY OF MOTION PICTURE ENGINEERS, 1939, 33 (04): : 403 - 409