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经营范围
发明名称
BUILDING SLAB AND CLIP
摘要
申请公布号
CA345034(A)
申请公布日期
1934.10.02
申请号
CAD345034
申请日期
申请人
THE CANADIAN GYPSUM COMPANY LIMITED
发明人
FRED A. MANSKE;ROY V. YEAGER
分类号
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