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发明名称
FIREPROOF WALL BOARD
摘要
申请公布号
CA330821(A)
申请公布日期
1933.03.14
申请号
CAD330821
申请日期
申请人
JOHN B. HARMON;JOHN A. WIENER
发明人
JOHN B. HARMON;JOHN A. WIENER
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