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发明名称
Multichannel cyclophon
摘要
申请公布号
US2474810(A)
申请公布日期
1949.07.05
申请号
US19470736434
申请日期
1947.03.22
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
ARDITI MAURICE;FRANZEL IRWIN HAROLD;FELNSTEIN JOSEPH
分类号
H04J3/04
主分类号
H04J3/04
代理机构
代理人
主权项
地址
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