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发明名称
Improvements in proof chambers for the testing of gun barrels and the like
摘要
申请公布号
GB578295(A)
申请公布日期
1946.06.24
申请号
GB19390031184
申请日期
1939.11.30
申请人
THE PLESSEY COMPANY LIMITED;HARRY DA COSTA
发明人
分类号
F41J13/00
主分类号
F41J13/00
代理机构
代理人
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地址
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