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经营范围
发明名称
Automatic weather strip
摘要
申请公布号
US1776522(A)
申请公布日期
1930.09.23
申请号
US19290366187
申请日期
1929.05.27
申请人
SONHEIM FRANK J
发明人
SONHEIM FRANK J.
分类号
E06B7/20
主分类号
E06B7/20
代理机构
代理人
主权项
地址
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