DIFF Subgroup
G06M 1/24 Drums; Dials; Pointers
Introduced: September 1968
Full Title
Design features of general application > for visual indication of the result of count on counting mechanisms, e.g. by window with magnifying lens > Drums; Dials; Pointers
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Child Classifications
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