|
GB191108153A
|
|
Improved Method of Manufacturing Polychrome Photographic Screens.
|
|
GB191025751A
|
|
Improved Process of Intensifying or Toning Silver Salt Photographic Images.
|
|
GB191005377A
|
|
Improvements in the Process of Manufacture of Polychrome Screens for Colour Photography.
|
|
GB191004912A
|
|
Improvements in the Process of Manufacture of Polychrome Screens for Colour Photography.
|
|
GB190929273A
|
|
Improved Process for the Manufacture of Polychrome Screens for Colour Photography.
|
|
GB190820111A
|
|
Improved Screen or Plate for Direct Colour Photography and Process for Manufacture of the same.
|
|
GB190816114A
|
|
Improvements in or relating to the Manufacture of Film for Cinematograph and like Apparatus.
|
|
GB190816115A
|
|
Method of Renovating or Repairing Worn Cinematographic Films.
|
|
GB190425718A
|
|
Improvements relating to Sensitized Plates for a Process of Color Photography.
|
|
GB190422988A
|
|
Improvements relating to Sensitized Plates for a Process of Color Photography.
|
