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发明名称
Richtungsabhängiges Druckgradienten-Mikrophon.
摘要
申请公布号
CH289422(A)
申请公布日期
1953.03.15
申请号
CHD289422
申请日期
1948.04.14
申请人
HASLER AG. WERKE FUER TELEPHONIE & PRAEZISIONSMECHANIK
发明人
HASLER AG. WERKE FUER TELEPHONIE & PRAEZISIONSMECHANIK
分类号
H04R1/40
主分类号
H04R1/40
代理机构
代理人
主权项
地址
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