Origin of Stencil Duplicating

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  • Name Information: creation, collection & processing

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The author was a former Head of Research at Gestetner, retiring in 1970. Traces the history of duplication to very early 20th century dealing primarily with apparatus and processes but with much about the role of Gestetner in this. Has chapters: 'Before stencils'; 'Writing on stencils'; 'Stencils for typewriting'; Beginning of a new era'. An appendix provides a select list of patents re document copying, 1714-1906, including those taken out Gestetner