METHOD OF PRODUCING CORE FOR WRITING IMPLEMENT OF CAPILLARY PEN
GAEVSKIJ NIKOLAJ S,SU, GRUZNOV ALEKSANDR G,SU, VISLENKO VLADIMIR I,SU, KURLOVA NINA A,SU, KURAKOVA LYUBOV N,SU, MALYSHKO ANATOLIJ P,SU, LEMPERT LEONID G,SU, MALCHEVSKIJ ANATOLIJ I,SU, ZABELLO SVETLANA E,SU, EGOROV BORIS A,SU, RIZANENKO VLADIMIR N,SU
Year of Publication 23.07.1989
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Year of Publication 23.07.1989
Patent