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发明名称
DIFFERENTIAL PRESSURE GATE
摘要
申请公布号
US3457007(A)
申请公布日期
1969.07.22
申请号
USD3457007
申请日期
1965.09.10
申请人
CINERAMA INC.
发明人
COLEMAN T. CONROY
分类号
G03B1/56;(IPC1-7):G03B1/52;G03B21/14;G03B21/40
主分类号
G03B1/56
代理机构
代理人
主权项
地址
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