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File:Joseph Hamilton with radio sodium experiment 97401413.jpeg

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English: Joseph Hamilton with radio sodium experiment in Berkeley, California, January, 1939.
Author Unknown author
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US gov photo


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January 1939

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current08:05, 25 February 2013Thumbnail for version as of 08:05, 25 February 2013640 × 854 (53 KB)UruiammeUser created page with UploadWizard
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