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发明名称
Manufacture of diaphragms
摘要
申请公布号
US2037666(A)
申请公布日期
1936.04.14
申请号
US19330688670
申请日期
1933.09.08
申请人
THE DORR COMPANY, INC.
发明人
PENNINGTON THOMAS J.
分类号
F16J3/02
主分类号
F16J3/02
代理机构
代理人
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地址
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