National physical laboratory
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Article
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1939
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Wiley (John Wiley & Sons)
โ 401 KB
An interesting csamplc of 'tlic increasing part silrcr is playing in modern industry is shown by tllis illustration of i~ silrcr cowrcd copper " U " tube liciiting unit sup-lytic " silver 0.030 in. thick, thc cnd platc with " BIiitthclytic " silvcr OqOGO in. thick 011 0110 side only, tlic weight of