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Signature: PLRPAT100871
Published: [S.l.]: [s.n.], 1979
Extent: 2 s., 4 obr.
Keywords: patenty
Publication type: patenty
Notes: 1 list, G 01 C 9/24., 22.12.1975, 18.7.1977
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Library VÚGTK > Patents
Monographic Publications