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发明名称
Improvements in calibrating scales suitable for use in radio-receivers
摘要
申请公布号
GB539812(A)
申请公布日期
1941.09.24
申请号
GB19400006058
申请日期
1940.04.03
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;HARRY CECIL NORWOOD
发明人
分类号
H03J1/04
主分类号
H03J1/04
代理机构
代理人
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地址
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