Technisches Zentralblatt. Abteilung Maschinenwesen. Patente

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Item Link Original Source
Limited (search only)   1952-53 University of California
Limited (search only)   1954 University of California
Limited (search only)   1955 University of California
Limited (search only)   1956 University of California
Limited (search only)   1957 University of California
Limited (search only)   1958 University of California
Limited (search only)   1959 University of California
Limited (search only)   1960 University of California
Limited (search only)   1961 University of California