Hemmerling, Joachim - In: World Patent Information 4 (1982) 4, pp. 177-182
This paper informs briefly on activities undertaken by the World Intellectual Property Organization (WIPO) with respect to the use of the microfiche A6. The use of the microfiche A6 as a micro carrier for patent information in the patent information system of the G.D.R. is described, indicating...