Standard By:Deutsches Institut Fur Normung E.V. (German National Standard) , 03/01/1991
Published:03/01/1991
Pages:2
File Size:1 file
Language:German
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DIN 19051-20
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Test patterns for micrography; test exposures made to establish the conditions for microfilming of drawings
Deutsches Institut Fur Normung E.V. (German National Standard) , 03/01/1991
Pages: 2
