CPC Subgroup
E06B 5/12 against air pressure, explosion, or gas
Full Title
Doors, windows, or like closures for special purposes ; Border constructions therefor > for protection against air-raid or other war-like action; for other protective purposes > against air pressure, explosion, or gas
2 direct subcodes
Child Classifications
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- E06B 5/14 Gasproof doors or similar closures; Adaptation of fixed constructions therefor