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Class Information
Number: 101/DIG.21
Name: Printing >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
101/	Inkers (101/335)	0
101/113	Duplicating machines	4
101/114	Stenciling	237
101/130	Planographic	29
101/150	Intaglio	84
101/171	Multicolor	65
101/2	Printing and sorting	47
101/212	Rolling contact machines	88
101/287	Bed-and-platen machines	33
101/3.1	Embossing or penetrating	111
101/327	Printing members and inkers	179
101/33	Transferring preparatory designs	49
101/335	Inkers	70
101/35	Special article machines	432
101/368	Printing members	111
101/407.1	Work supporting members	76
101/415.1	Flexible-sheet-securing devices	739
101/416.1	Antismut device	95
101/425	Cleaning attachments	514
101/45	Selective or progressive	64
101/476	Printing on stacked articles	6
101/477	Print plate feeding or delivering	365
101/478	Erasable plate	82
101/479	Assembly or disassembly features	134
101/480	Press part or attachment	134
101/481	Layout or registration	87
101/482	Tab	2
101/483	Processes	656
101/494	Miscellaneous	71
101/DIG.29	Printing involving a color-forming phenomenon	29
101/DIG.30	Special article printing with article controlled operation	18
101/DIG.31	Devices for applying metal leaf employing hot dies	15
101/DIG.32	Means to vary the time of contact of one or more rollers in an ink train	43
101/DIG.33	Ink transfer employing one or more belts	10
101/DIG.34	Means to agitate ink in a reservoir	19
101/DIG.35	Rollers and track therefore in printing presses	21
101/DIG.36	Means for registering or alignment of print plates on print press structure	244
101/DIG.37	Printing employing electrostatic force	209
101/DIG.38	Means for axially reciprocating inking rollers	84
101/DIG.39	Printing on cylinder of revolution	9
101/DIG.40	Means to print on golf balls	44
101/DIG.41	Means for braking press cylinders	4
101/DIG.42	Means for tensioning webs	36
101/DIG.43	Machines printing by both intaglio and another type of printing means	15
101/DIG.44	Coin controlled printing machines	0
101/DIG.45	Sensor for ink or dampening fluid thickness or density	60
101/DIG.46	Printing operation controlled by code indicia on printing plate or substate	27
101/DIG.47	Automatic or remote control of metering blade position	34
101/DIG.48	Endless printing belt for other than selective or progressive printing	19
101/DIG.49	Convertible printing press (e.g., lithographic to letter press)	18