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Summary
| Description |
English: Notes to Hackh's PT (1918) |
| Date | |
| Source | Hackh IWD (1919), The Classification of the Chemical Elements. Scientific American, 87 (supp 2253), 146–149. doi:10.1038/scientificamerican03081919-146supp |
| Author | Hackh IWD |
Licensing
|
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. 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. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:09, 4 July 2023 | | 1,356 × 1,842 (821 KB) | Sandbh | Uploaded a work by Hackh IWD from Hackh IWD (1919), The Classification of the Chemical Elements. Scientific American, 87 (supp 2253), 146–149. doi:10.1038/scientificamerican03081919-146supp with UploadWizard |
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