including complementary formations on opposite walls for engaging mating elements

Full Title

Buckles, buttons, clasps, etc. > Zipper or required component thereof > Interlocking surface constructed from plural elements in series > having interlocking portion with specific shape > including complementary formations on opposite walls for engaging mating elements

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

This code exists only in CPC.

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