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发明名称
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摘要
申请公布号
US1822237(A)
申请公布日期
1931.09.08
申请号
US19290377520
申请日期
1929.07.11
申请人
RUDOLF ROESE
发明人
ROESE RUDOLF
分类号
E06B3/50
主分类号
E06B3/50
代理机构
代理人
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