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档案
SYSTEM FOR FORMING VENTILATED CRAWL SPACES OR INTERSPACES OR ELEVATED PLATFORMS COMPOSED BY DOME-SHAPED FORMWORK ELEMENTS SUPPORTED ON SUPPORTING TUBES RESTING ON A FOUNDATION OR ON A SURFACE
发明专利审中
§ Ⅰ
卷宗概要
发明人
ALBERTINI, Antimo Riccardo; SERAFIN, Giovanni; SERAFIN, Antonio
申请日
Jun 25, 2025
公开日
Jan 6, 2026
IPC 分类
E04BE04BE04BE04BE04G
CPC 分类
E04BE04BE04BE04BE04G