Top IPC subclasses
1
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C07C
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2
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Acyclic or carbocyclic compounds
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2
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C25F
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1
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processes for the electrolytic removal of materials from objectsapparatus therefor
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3
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D06P
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1
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dyeing or printing textilesdyeing leather, furs, or solid macromolecular substances in any form
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4
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B23H
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1
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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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