Locarno Classification for Industrial Designs
管子连接环，管子密封环 103659
Chinese
管子连接环，管子密封环
English
Packing rings for tubes and pipes / Joint or packing rings for tubes and pipes / Joint rings for tubes and pipes
Spanish
Anillos de empaquetadura para tubos y tuberías
- Number
- 103659
- Category
- 23-01 Fluid distribution equipment
- Version
- 洛迦诺分类第十五版（LOC 15，2025-01-01 起施行）；中文取自国家知识产权局《国际外观设计分类表（第15版）》，英文取自 WIPO 官方文本