DIFF Main Group
B23F 13/00 Making worms by methods essentially requiring the use of machines of the gear-cutting type (making screw-thread B23G)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Making worms by methods essentially requiring the use of machines of the gear-cutting type
CPC: Making worms by methods essentially requiring the use of machines of the gear-cutting type (making screw-thread B23G)
Full Title
Full titles differ between systems:
IPC:
Making worms by methods essentially requiring the use of machines of the gear-cutting type
CPC:
Making worms by methods essentially requiring the use of machines of the gear-cutting type (making screw-thread B23G)
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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