File:Rudolf Goldschmidt (1927).jpg
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Summary
| Description |
English: Rudolf Goldschmidt demonstrating a heart monitor. Original photo caption: "Dr. Goldschmidt demonstrating his new 'vitality meter.' The slightest changes in the rate and nature of the subject's pulse beats are charted accurately on the moving tape." |
| Date | |
| Source | Popular Science Monthly, Volume 110, May 1927, page 55. |
| Author | Unlisted |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:41, 1 January 2023 | | 637 × 494 (127 KB) | Thomas H. White | Uploaded a work by Unlisted from Popular Science Monthly, Volume 110, May 1927, page 55. with UploadWizard |
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