| 3059614 | Device for developing a latent electrostatic image | |||
| 3060024 | Photopolymerization process for reproducing images | |||
| 3081699 | Thermal reproduction | |||
| 3088386 | Electrophotographic photocopy machine | |||
| 3117030 | Electrophotographic developing process and apparatus | |||
| 3190198 | Xerographic cleaning apparatus | |||
| 3234018 | Method for developing copies using electrophotographic layers | |||
| 3256811 | Method for the preparation of thermographic offset masters |