DIFF Main Group
A62D 7/00 Composition of materials for transparent parts of gas-masks, respirators, breathing bags, or helmets
Introduced: September 1968
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- A62D 7/02 Clear-view sheets which prevent the formation of water drops or ice IPC+CPC Available in IPC and CPC