Patents on geophysical prospecting issued in the United States, England, Canada, Australia, Germany, France, and Russia
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Main Author: | Ayvazoglou, W. 1871-1956. |
---|---|
Format: | Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1936.
|
Physical Description: |
136 pages ; 27 cm. |
Series: |
Information circular (United States. Bureau of Mines) ;
6883. |
Subjects: |
In Prospector
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