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No title available. December 22, 1971: GB1257778-A (116 worldwide citation)

1,257,778. Fourier analysis apparatus. NATIONAL RESEARCH DEVELOPMENT CORP. March 7, 1969 [Dec. 7, 1967], No. 55779/67. Heading G1A. [Also in Division G2] Fourier analysis apparatus for measuring the one-dimensional spatial frequency spectrum of an image produced for example in radioagraphy (using a ...


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