Similarly, another registration for the use of " OZALID " for " Light-Sensitive Diazotype Papers, Cloths, Films, etc ., Machines for Photoprinting Thereon, Machines for Developing the Photoprints Thus Produced and Parts of Such Machines " was first registered in the United States in 1942, and also has expired.
2.
All of them, until a certain size, can be achieved using a contact printer with an appropriate lamp ( ultraviolet, etc . . ) but for big engineering and architectural plans, the " heliographic copiers " used with the cyanotype and the diazotype technologies, are of the roller type, which makes them completely different from contact printers.
मोबाइल