G03B 21/005 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

G03B 21/005

Full Title

Projectors or projection-type viewers; Accessories therefor (devices for changing pictures G03B23/00)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.