Diazo copying material for secondary original

Diazo light-sensitive copying composition and process of using i

Diazo photographic materials containing 2-hydroxy 3-naphthanilid

Diazo recording process and material

Diazo-type multicolor reproduction process

Diazotype composition

Diazotype material and graphic reproduction processes employing

Diazotype material that can be developed by applying a small amo

Diazotype materials

Diazotype materials with hydroxypropyl cellulose ether as anti-s

Diazotype multicolor reproduction process

Diazotype reproduction layer formed from matrix of spheric parti

Diffusable dye-releasing compounds which are cleavable upon oxid

Diffusible-dye releasing type dyes which couple to form colorles

Diffusion retarding layers comprising polymers of dimethoxyethyl

Diffusion transfer color film unit with hydroxy substituted alky

Diffusion transfer color photographic flim unit with composite o

Diffusion transfer color process using lactone or sultone ring c

Diffusion transfer elements comprising U V light absorbers

Diffusion transfer image-receiving element having polyvinylpyrid