EIP Incorporated:

Model Date Group Description
371 July 1977Frequency counterSource Locking Autohet Microwave Counter
535B February 1988Frequency counterMicrowave Frequency Counters
538B February 1988Frequency counterMicrowave Frequency Counters
545A 1981Frequency counterMicrowave Frequency Counter
548A 1981Frequency counterMicrowave Frequency Counter
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