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发明名称
Aquatic device
摘要
申请公布号
US2840832(A)
申请公布日期
1958.07.01
申请号
US19550550996
申请日期
1955.12.05
申请人
ROY E. CONGER
发明人
FRIED MARVIN R.
分类号
B63B35/73
主分类号
B63B35/73
代理机构
代理人
主权项
地址
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