PUPIL EXAMINING DEVICE
SOROKO VLADIMIR N,SU, SAYUK EVGENIJ K,SU, KORNEJCHUK VIKTOR ,SU, ESKENAZI AVRAM M,SU, TODOROV GEORGI S,SU, TODOROVA MARGARITA K,SU
Year of Publication 15.07.1979
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Year of Publication 15.07.1979
Patent
TEACHING DEVICE
SAYUK EVGENIJ K,SU, KORNEJCHUK VIKTOR ,SU, ESKENAZI AVRAM M,SU, TODOROV GEORGI S,SU, TODOROVA MARGARITA K,SU
Year of Publication 15.07.1979
Get full text
Year of Publication 15.07.1979
Patent
TEACHING DEVICE
SAYUK EVGENIJ K,SU, KORNEJCHUK VIKTOR ,SU, ESKENAZI AVRAM M,SU, TODOROV GEORGI S,SU, TODOROVA MARGARITA K,SU
Year of Publication 15.05.1979
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Year of Publication 15.05.1979
Patent