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发明名称
CALL CIRCUIT OF A TELEPHONE IN PARTICULAR THAT OF INDUSTRIAL TYPE
摘要
申请公布号
PL273649(A1)
申请公布日期
1990.01.22
申请号
PL19880273649
申请日期
1988.07.08
申请人
PRZED PROD USLUGOWE ELEKTRONIK
发明人
SZYMOCHA JERZY;FRANCIK JOZEF;PODLEJSKI MACIEJ;FRACKIEWICZ WLADYSLAW
分类号
H04M;(IPC1-7):H04M/
主分类号
H04M
代理机构
代理人
主权项
地址
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