DIFF Main Group
B21G 1/00 Making needles used for performing operations (forming heads on pin-like needles B21G3/12; making U-shaped hairpins B21G7/04)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Making needles used for performing operations
CPC: Making needles used for performing operations (forming heads on pin-like needles B21G3/12; making U-shaped hairpins B21G7/04)
Full Title
Full titles differ between systems:
IPC:
Making needles used for performing operations
CPC:
Making needles used for performing operations (forming heads on pin-like needles B21G3/12; making U-shaped hairpins B21G7/04)
Of 7 combined children, 5 exist in both systems.
2 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B21G 1/08 of hollow needles or needles with hollow end, e.g. hypodermic needles, larding-needles (B21G1/10 takes precedence) IPC+CPC Available in IPC and CPC
- B21G 1/10 equipped with locking means for the material to be drawn through, e.g. for repairing tubeless tyres IPC+CPC Available in IPC and CPC
- B21G 1/12 Securing, cleaning-off burrs, reconditioning polishing, grinding (takes precedence over B21G1/02 - B21G1/10) IPC+CPC Available in IPC and CPC