申请人 |
OBRETENOV,CVETAN D.;KRACHANOV,KHRISTO G.;KUNCHEVA,MARGARITA JJ.;SOMOV,GEORGI T.;IVANOVA,SNEZHANA D.;OBRETENOVA,MARGARITA V. |
发明人 |
OBRETENOV,CVETAN D.;KRACHANOV,KHRISTO G.;KUNCHEVA,MARGARITA JJ.;SOMOV,GEORGI T.;IVANOVA,SNEZHANA D.;OBRETENOVA,MARGARITA V. |