E | Sektion E — Bauwesen; Erdbohren; Bergbau | FIXED CONSTRUCTIONS | |||||
E03 | Wasserversorgung; Kanalisation | WATER SUPPLY; SEWERAGE | |||||
E03F | Abwasserkanäle; Abwassergruben | SEWERS; CESSPOOLS | |||||
E03F 3/00 | Kanalisationsnetze [1, 2006.01] | Sewer pipe-line systems [1, 2006.01] | |||||
E03F 3/06 |
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