Mineral exploration, mining, and processing patents.
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| New Title: | Mineral processing patents issued during ... |
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| Other Authors: | |
| Format: | Serial |
| Language: | English |
| Published: |
Arlington, Virginia :
Oliver S. North,
c1971.
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| Subjects: |
| Published: | Began in 1964. Ceased in 1964. |
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| Physical Description: | 1v. ; 25 cm. |
| ISSN: | 0733-08333 |