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- [2] ELECTRICAL INDICATING AND MEASURING INSTRUMENTS SHOWN AT THE PHYSICAL SOCIETYS EXHIBITION JOURNAL OF SCIENTIFIC INSTRUMENTS AND OF PHYSICS IN INDUSTRY, 1948, 25 (08): : 284 - 284
- [3] ELECTRICAL INDICATING AND MEASURING INSTRUMENTS SHOWN AT THE PHYSICAL-SOCIETYS EXHIBITION JOURNAL OF SCIENTIFIC INSTRUMENTS AND OF PHYSICS IN INDUSTRY, 1948, 25 (06): : 181 - 182
- [4] SOVIET MEASURING INSTRUMENTS AT SOKOLNIKI EXHIBITION MEASUREMENT TECHNIQUES-USSR, 1965, (11): : 1066 - &
- [5] EXHIBITION OF DANISH ELECTRONIC MEASURING INSTRUMENTS MEASUREMENT TECHNIQUES-USSR, 1964, (03): : 265 - &
- [6] FRENCH EXHIBITION OF ELECTRONIC MEASURING INSTRUMENTS + EQUIPMENT MEASUREMENT TECHNIQUES-USSR, 1964, (11): : 966 - &
- [7] CZECHOSLOVAK EXHIBITION OF MEASURING INSTRUMENTS AND RADIO TECHNOLOGY MEASUREMENT TECHNIQUES-USSR, 1967, (12): : 1556 - &
- [8] MEASURING INSTRUMENTS + EQUIPMENT AT JAPANESE EXHIBITION IN MOSCOW MEASUREMENT TECHNIQUES-USSR, 1964, (12): : 1051 - &
- [10] ELECTRICAL AND MECHANICAL MEASURING INSTRUMENTS WERKSTATTSTECHNIK ZEITSCHRIFT FUR INDUSTRIELLE FERTIGUNG, 1969, 59 (09): : 461 - &