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- publications: http://minerals.usgs.gov/minerals/pubs/commodity/copper/ I, the copyright holder of this work, hereby publish it under the following license:...(2,125 × 1,400 (36 KB)) - 14:18, 4 April 2023
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- File:Engineering and Mining Journal-Press 1923-10-27- Vol 116 Iss 17 (IA sim engineering-and-mining-journal 1923-10-27 116 17).pdf (category PD US expired)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...(1,343 × 1,858 (26.11 MB)) - 02:53, 20 January 2023
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- File:The Engineering and Mining Journal 1909-01-09- Vol 87 Iss 2 (IA sim engineering-and-mining-journal 1909-01-09 87 2).pdf (category PD US expired)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...(1,300 × 1,827 (50.98 MB)) - 09:48, 21 November 2022
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- File:The Engineering and Mining Journal 1902-05-10- Vol 73 Iss 19 (IA sim engineering-and-mining-journal 1902-05-10 73 19).pdf (category PD US expired)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...(1,462 × 1,958 (26.34 MB)) - 20:19, 2 January 2021
- File:The Engineering and Mining Journal 1902-02-01- Vol 73 Iss 5 (IA sim engineering-and-mining-journal 1902-02-01 73 5).pdf (category PD US expired)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...(1,462 × 1,950 (31.7 MB)) - 01:23, 2 January 2021
- File:Engineering and Mining Journal-Press 1924- Vol 117 Index (IA sim engineering-and-mining-journal 1924 117 index).pdf (category PD US expired)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...(1,343 × 1,860 (12.46 MB)) - 20:00, 2 January 2021
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- File:Basic price list 1931-1932 - Churchill Farms Nursery. (IA CAT31337787).pdf (category PD US Government)English applies to jurisdiction: United States of America determination method: work of the federal government of the United States determination method: SHA-1...(962 × 1,443 (2 MB)) - 11:30, 18 August 2024
- 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...(1,504 × 1,931 (8.6 MB)) - 02:20, 1 January 2021