Engine noise generator

作者: Vernon H Siegel

DOI:

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参考文章(7)
Ralph K Potter, Translation of visual symbols ,(1945)
Bijl Hendrik Johannes Van Der, Photo-electric translating device ,(1916)
Claude K Wilkinson, Engine noise equipment ,(1944)
William S Elliott, Light beam stabilizing system ,(1950)
Melvin L Severy, Sound-producing device. ,(1913)
Richard E Williams, Electronic tone generator ,(1948)