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)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor

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)

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

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)

Of 13 combined children, 9 exist in both systems.

4 codes are CPC-only extensions.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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B28D 1/001 CPC only CPC only
B28D 1/003 CPC only CPC only
B28D 1/005 CPC only CPC only
B28D 1/006 +1 CPC CPC only CPC only
B28D 1/02 by sawing +1 CPC IPC+CPC Available in IPC and CPC
B28D 1/14 by boring or drilling (rotary drilling machines B23B; ; portabe percussive machines B25D; ) +2 CPC IPC+CPC Available in IPC and CPC
B28D 1/16 by turning IPC+CPC Available in IPC and CPC
B28D 1/18 by milling, e.g. channelling by means of milling tools +4 CPC IPC+CPC Available in IPC and CPC
B28D 1/20 by planing, e.g. channelling by means of planing tools IPC+CPC Available in IPC and CPC
B28D 1/22 by cutting, e.g. incising +5 CPC IPC+CPC Available in IPC and CPC
B28D 1/26 by impact tools, e.g. by chisels or other tools having a cutting edge (portable percussive tools B25D) +1 CPC IPC+CPC Available in IPC and CPC
B28D 1/30 to form contours, i.e. curved surfaces, irrespective of the method of working used (for artistic purposes B44B) IPC+CPC Available in IPC and CPC
B28D 1/32 Methods and apparatus specially adapted for working materials which can easily be split, e.g. mica, slate, schist +3 CPC IPC+CPC Available in IPC and CPC