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发明名称
Mineral wool product and method of making same
摘要
申请公布号
US1996082(A)
申请公布日期
1935.04.02
申请号
US19310559480
申请日期
1931.08.26
申请人
JOHNS-MANVILLE CORPORATION
发明人
POWELL EDWARD R.
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主分类号
代理机构
代理人
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