NASA NTRS · 19700000067
Cost-reducing multipurpose microfilm card
Abstract
Microfilm-aperture card is printed in the same format on both sides which enables the use of one card for mounting films that are ''right reading'' on both the base side and the emulsion side. This reduces the number of microfilm-card formats.
Keep this discovery
Explore connections, maps & timelines
Smith, A. V.. 1970-01-01. Cost-reducing multipurpose microfilm card. https://ntrs.nasa.gov/citations/19700000067
Cite the original work for its findings. Save a collection to share your selection of sources.