David Yakovlevich Frenkel

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Minsk, BY

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing cast-in-place flexible joined-together constru...
- Patent number 5,868,894
- Issue date Feb 9, 1999
- David Yakovlevich Frenkel
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES