| 355 / | HD | PHOTOCOPYING | 
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| 18 |  | PROJECTION PRINTING AND COPYING CAMERAS {27} | 
| 19 | DF | .~> Combined with or convertible to a contact printer | 
| 20 | DF | .~> With cathode ray tube for light source | 
| 21 | DF | .~> Collapsible or portable | 
| 22 | DF | .~> Stereoscopic | 
| 23 | DF | .~> Copying both sides of original {2} | 
| 26 | DF | .~> Photographing on both sides of photo-sensitive paper | 
| 27 | DF | .~> With developing {1} | 
| 29 | DF | .~> With film severing | 
| 30 | DF | .~> With temperature or foreign particle control | 
| 31 | DF | .~> Copying sound record | 
| 32 | DF | .~> Multicolor picture {2} | 
| 39 | DF | .~> Tilting | 
| 40 | DF | .~> Identifying, composing, or selecting {3} | 
| 44 | DF | .~> With focusing or projection screen {1} | 
| 46 | DF | .~> Plural | 
| 47 | DF | .~> Image transferred to or from curved surface {1} | 
| 50 | DF | .~> Original moves continuously {1} | 
| 52 | DF | .~> Distortion introducing or rectifying | 
| 53 | DF | .~> Step and repeat | 
| 54 | DF | .~> Producing plural rows of pictures on photosensitive paper | 
| 55 | DF | .~> Focus or magnification control {4} | 
| 64 | DF | .~> Image transferred from individual documents to film strip {1} | 
| 66 | DF | .~> Reflector between original and photo-sensitive paper | 
| 67 | DF | .~> Illumination systems or details {4} | 
| 72 | DF | .~> Detailed holder for photosensitive paper {2} | 
| 75 | DF | .~> Detailed holder for original {1} | 
| 77 | DF | .~> Methods |