Top IPC subclasses
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1
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C03B
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8
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manufacture, shaping, or supplementary processes
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|
2
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C10M
|
6
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lubricating compositionsuse of chemical substances either alone or as lubricating ingredients in a l
|
|
3
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B24B
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4
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machines, devices, or processes for grinding or polishingdressing or conditioning of abrading surfac
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4
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B23H
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3
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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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|
5
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C10N
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1
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indexing scheme associated with subclass
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|
6
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B21J
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1
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forginghammeringpressingrivetingforge furnaces
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7
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B21K
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1
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making forged or pressed products, e.g. horse-shoes, rivets, bolts, wheels
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