G01H 9/004 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

G01H 9/004

Full Title

Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.