DEVICE FOR WELLHEAD FRAMING
FUSS V.A, DOROFEEV A.A, IGUMNOV G.V, KOBJAKOV N.I, FREJMANIS R.JA, SHARMANOV S.A, GEBEL' A.JA, OPALEV V.A, SOTNIKOVA V.S, LUTS V.A, PROTOPOPOV N.A, ANDRJUKOV V.N, POZDEEV A.N
Year of Publication 20.08.2004
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Year of Publication 20.08.2004
Patent