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ES434305A1
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Procedure to produce continuous receptive copy sheets. (Machine-translation by Google Translate, not legally binding)
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IT1031228B
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Receptive copy sheet - comprises flexible support bearing adhesive binder e.g. polybutene and polymer spheres e.g. polyethylene, coating
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ZA7500304B
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Receptive copy sheets and process
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US3598332A
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Web-supporting roller assembly
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US3551270A
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Bonding air-impervious flexible sheets using an adhesive,perforated,inner sheet and article produced thereby
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US3283709A
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Hectograph duplication
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US3216350A
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Duplicating process and products
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US3252413A
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Heat duplicating products and process
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