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Application filed by Рязанский Радиотехнический ИнститутfiledCriticalРязанский Радиотехнический Институт
Priority to SU792737089ApriorityCriticalpatent/SU807281A1/en
Application grantedgrantedCritical
Publication of SU807281A1publicationCriticalpatent/SU807281A1/en
Devices And Processes Conducted In The Presence Of Fluids And Solid Particles
(AREA)
Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves
(AREA)
Description
(54) УМНОЖИТЕЛЬ ЧАСТОТЫ(54) MULTIPLAYER OF FREQUENCY
Claims (1)
1. Авторское свидетельство СССР № 350010, кл. G 06 G 7/163, 1970.1. USSR author's certificate No. 350010, cl. G 06 G 7/163, 1970.свидетельство СССР 06 F 7/52, 1976.USSR certificate 06 F 7/52, 1976.свидетельство СССР 06 F 7/39, 1971 USSR certificate 06 F 7/39, 1971