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发明名称
SHELL MOLD
摘要
申请公布号
CA656569(A)
申请公布日期
1963.01.22
申请号
CAD656569
申请日期
申请人
AMERICAN STEEL FOUNDRIES
发明人
WILLIAM D. LAWTHER;JOHN A. RASSENFOSS
分类号
主分类号
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代理人
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