Tovarischesivo S Ogranichennoi Oivetsivennostiju Nauchotekhnicheskaya Firma “Elta”-

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Method of prospecting for geological formations and apparatus for i...
- Patent number 6,320,386
- Issue date Nov 20, 2001
- Tovarischesivo S Ogranichennoi Oivetsivennostiju Nauchotekhnicheskaya Firma “...
- Boris Petrovich Balashov
- G01 - MEASURING TESTING

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