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经营范围
发明名称
Air duct
摘要
申请公布号
US2099756(A)
申请公布日期
1937.11.23
申请号
US19350047217
申请日期
1935.10.29
申请人
JOHNS-MANVILLE CORPORATION
发明人
SEIGLE WILLIAM R.
分类号
F16L3/14;F16L9/14;F16L59/135
主分类号
F16L3/14
代理机构
代理人
主权项
地址
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