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Class Information
Number: 355/257
Name: Photocopying >

Sub-classes under this class:

Class Number Class Name Patents
355/1 Including fiber optics 258
355/133 Miscellaneous 174
355/18 Projection printing and copying cameras 199
355/2 Hologram, seismogram, graph or scale copying 18
355/400 Using microcapsules 54
355/78 Contact printing 71

Patents under this class:

Patent Number Title Of Patent Date Issued

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