DIFF Subgroup
B28D 1/18 by milling, e.g. channelling by means of milling tools
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor > by milling, e.g. channelling by means of milling tools
CPC:
Working stone or stone-like materials, e.g. brick, concrete , not provided for elsewhere; Machines, devices, tools therefor (fine working of gems, jewels, crystals B28D5/00; working by grinding or polishing B24; devices or means for dressing or conditioning abrasive surfaces B24B53/00) > by milling, e.g. channelling by means of milling tools
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Child Classifications
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