Top IPC subclasses
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1
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G06K
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39
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Recognition of data; presentation of data; record carriers; handling record carriers
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2
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B23H
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11
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Working of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool; such working combined with other forms of working of metal
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3
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B41M
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6
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printing, duplicating, marking, or copying processescolour printing
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4
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G07D
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4
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sorting, testing, changing, delivering, or otherwise handling coinstesting or changing paper currenc
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5
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G01K
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3
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measuring temperaturemeasuring quantity of heatthermally-sensitive elements not otherwise provided f
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6
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G09F
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2
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displayingadvertisingsignslabels or name-platesseals
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7
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H01L
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2
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Semiconductor devices; electric solid state devices not otherwise provided for
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8
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B44F
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1
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special designs or pictures
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9
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B82B
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1
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nano-structuresmanufacture or treatment thereof
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10
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C25D
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1
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processes for the electrolytic or electrophoretic production of coatingselectroformingjoining workpi
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11
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G07C
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1
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time or attendance registersregistering or indicating the working of machinesgenerating random numbe
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12
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B42D
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1
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booksbook coversloose leavesprinted matter of special format or style not otherwise provided fordevi
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