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Signature: SSSRPAT669189
Published: [S.l.]: [s.n.], 1979
Extent: 6 sl., 2 obr.
Keywords: patenty
Publication type: patenty
Notes: 1 sv., G 01 C 17/30., 13.4.1977, 25.6.1979
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Library VÚGTK > Patents
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