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发明名称
Volume control for sound reproduction systems
摘要
申请公布号
US2517629(A)
申请公布日期
1950.08.08
申请号
US19480017224
申请日期
1948.03.26
申请人
HARTFORD NATIONAL BANK AND TRUST COMPANY
发明人
BUYS PIETER KLAAS;ELDIK PIETER FREDERIK VAN
分类号
H03G3/24
主分类号
H03G3/24
代理机构
代理人
主权项
地址
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