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发明名称
Diaphragm elements
摘要
申请公布号
US2751935(A)
申请公布日期
1956.06.26
申请号
US19540474952
申请日期
1954.12.13
申请人
CUTLER, HAMMER, INC.
发明人
SMITH CHARLES R.
分类号
F16J3/02
主分类号
F16J3/02
代理机构
代理人
主权项
地址
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