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

• 1 January 1982
• journal article
• Published by Elsevier in World Patent Information
• Vol. 4  (4) , 172-176
• https://doi.org/10.1016/0172-2190(82)90046-1

Abstract

Keywords

• APERTURE CARD
• PATENT SPECIFICATIONS
• CHOICE
• CARD OR MICROFICHE
• COLLECTIONS