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经营范围
发明名称
FLOAT AND METHOD OF MAKING SAME
摘要
申请公布号
US3616772(A)
申请公布日期
1971.11.02
申请号
USD3616772
申请日期
1969.09.12
申请人
JOHN R. POPKIN
发明人
JOHN R. POPKIN
分类号
B63B7/08;(IPC1-7):B63B7/08
主分类号
B63B7/08
代理机构
代理人
主权项
地址
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