File:Spectrophotometer.jpg
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Summary
DescriptionSpectrophotometer.jpg | Diagram of the Model DU Spectrophotometer, showing Mounting Block, Cell Compartment, Phototube Housing and Lamp Housing detached from the Monochromator. |
Date | |
Source |
National Technical Laboratories, Beckman Bulletin 91-C, South Pasadena, California, 1947 National Museum of American History, Behring Center, Smithsonian Institution and Beckman Coulter, Inc. From exhibition "Visible Proofs: Forensic Views of the Body" U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894 |
Author | Unknown authorUnknown author |
Licensing
Public domainPublic domainfalsefalse |
This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
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current | 00:15, 5 December 2006 | 903 × 1,200 (173 KB) | Robotsintrouble~commonswiki | {{Information |Description=Diagram of the Model DU Spectrophotometer, showing Mounting Block, Cell Compartment, Phototube Housing and Lamp Housing detached from the Monochromator. |Source=National Technical Laboratories, Beckman Bulletin 91-C, South Pasad |
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