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发明名称
Fire extinguisher for motionpicture projectors
摘要
申请公布号
US2481168(A)
申请公布日期
1949.09.06
申请号
US19450635699
申请日期
1945.12.18
申请人
SOPER DONALD C
发明人
SOPER DONALD C.
分类号
G03B21/18
主分类号
G03B21/18
代理机构
代理人
主权项
地址
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