Method of and system for interrogating a plurality of sources of data

作者: Ralph William Austad , William H Bridge , Donald J Birmingham

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参考文章(4)
Herbert Brun, Greene Pascal B, John Terzian, Humphrey Jr Watts S, Electronic data processing equipment ,(1963)
Le Roy J Lange, George A Groth, Harold C Robinson, Apparatus for recording sales ,(1962)
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