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发明名称
DRY POWDER FOR WALLBOARD JOINT TREATMENT
摘要
申请公布号
CA715620(A)
申请公布日期
1965.08.10
申请号
CAD715620
申请日期
申请人
NATIONAL GYPSUM COMPANY
发明人
HOWARD S. ELDEN
分类号
主分类号
代理机构
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