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| View Original: | Queen_Self-Regulating_X-Ray_Tube_Operating_Properly.tif (4761x6207) | |||
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| Keywords: Queen Self-Regulating X-Ray Tube Operating Properly.tif en Artwork appearing in several James W Queen Co catalogs in the early 1900's The drawing is probably by the inventor Henry Lyman Saÿen 2015-11-03 James W Queen Company Collection 1850-1952 Archives Center National Museum of American History Smithsonian Institution other versions PD-USGov X-ray tubes Henry Lyman Säyen James W Queen Company Uploaded with UploadWizard | ||||