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Dive into the research topics where Hans Gref is active.

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Featured researches published by Hans Gref.


Archive | 1978

Apparatus for the continuous preparation of photographic emulsions

Werner Wilke; Hans Gref; Hans Frenken


Archive | 1972

METHOD OF MEASURING WEB TENSION

Peter Herzhoff; Hans Gref; Wolfgang Schweicher; Hans Frenken; Peter Assenmacher; Dietmar Westen


Archive | 1969

PROCESS FOR COATING SUBSTRATES IN STRIP-FORM WITH PHOTOGRAPHIC EMULSION

Peter Herzhoff; Hans Gref; Wolfgang Schweicher; Willi Wasser; Kurt Browatski; Josef Friedsam; Fritz Maus


Archive | 1973

Process and an apparatus for improving the properties of solutions having a high solids content, which are to be used for coating a tape particularly solutions of photographic emulsions

Peter Herzhoff; Fritz Maus; Hans Gref; Stephan Platz


Archive | 1969

PROCESS FOR COATING STRIP-FORM SUBSTRATES

Peter Herzhoff; Hans Gref; Fritz Muas; Willi Wasser; Kurt Browatzki; Josef Friedsam; Wolfgang Schweicher


Archive | 1980

Process for the continuous preparation of photographic emulsions

Werner Wilke; Hans Gref; Hans Frenken


Archive | 1969

APPARATUS FOR COATING STRIP-FORM SUBSTRATES

Peter Herzhoff; Hans Gref; Rolf Dr Behr; Fritz Maus; Wolfgang Schweicher; Willi Wasser; Josef Friedsam; Kurt Browatzki


Archive | 1970

Apparatus for coating tapes,sheets and the like with viscous solutions using the air-brush principle

Hans Gref; Peter Herzhoff; Stephan Platz


Archive | 1978

Casting block of stable shape

Hans Gref; Karl Voss; Willi Wasser


Archive | 1976

Detection device for paper or film in web form

Peter Herzhoff; Hans Gref; Wolfgang Schweicher

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