Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP3642885UpriorityCriticalpatent/JPS61152983U/ja
Publication of JPS61152983UpublicationCriticalpatent/JPS61152983U/ja
Radio astronomy- Instruments and observations(Book on radio astronomy instruments and observations covering high sensitivity radiometers, masers, parametric amplifiers, radio telescope design, radio spectrometers, parabolic reflectors, etc)