Aperture card or microfiche -- The choice in collections of patent specifications

S. Hahnemann

World Patent Information, 1982, vol. 4, issue 4, 172-176

Abstract: The proposal made in 1981 to accept microfiches as an alternative to aperture cards for the international exchange of patent documents between patent offices has prompted discussion in the Micrography Working Party of the DGD - APD and in the PCPI. The article reviews these discussions and sets forth the advantages and disadvantages of the two microforms. The author concludes by recommending to the Patent Offices, in view of technological developments expected in the coming years, to stay for the present time with the aperture card.

Date: 1982
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