International Organization for Standardization (ISO)
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ISO 3866:1977
Scope
Includes the principal widths to be retained for fabric printing ribbons wider than 19 mm on spolls intended for office machines and machines used for information processing. Complements ISO 2257.
ISO 3866:1977 history
1977ISO 3866:1977 Office machines and printing machines used for information processing; Widths of fabric printing ribbons on spools exceeding 19 mm