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发明名称
Safety device
摘要
申请公布号
US1749063(A)
申请公布日期
1930.03.04
申请号
US19270235825
申请日期
1927.11.26
申请人
JOSEPH A. BROWN
发明人
BROWN SAM R.
分类号
B27G19/06
主分类号
B27G19/06
代理机构
代理人
主权项
地址
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