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发明名称
Improvements in time delay devices
摘要
申请公布号
GB681851(A)
申请公布日期
1952.10.29
申请号
GB19490024989
申请日期
1949.09.29
申请人
J. A. CRABTREE & CO., LIMITED;JOHN ASHWORTH CRABTREE;THOMAS DANIEL GUY WINTLE
发明人
ALTER SEIGFRIED;CRABTREE JOHN ASHWORTH;WINTLE THOMAS DANIEL GUY
分类号
G04F1/00
主分类号
G04F1/00
代理机构
代理人
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