发明名称 |
Universal intercom adapter for varying residential wiring systems |
摘要 |
An intercom adapter used for selecting optionally one of three popular in-place residential wiring systems, in which two switches, each with two circuit-selecting contacts provide four permutations for selecting a circuit compatible for the in-place residential wiring system, to thereby reduce inventory to only the one switch-operated adapter.
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申请公布号 |
US7409052(B1) |
申请公布日期 |
2008.08.05 |
申请号 |
US20040948484 |
申请日期 |
2004.09.24 |
申请人 |
SCHILSKY LAWRENCE D;SCHILSKY ALAN |
发明人 |
SCHILSKY LAWRENCE D.;SCHILSKY ALAN |
分类号 |
H04M1/60;H01R29/00;H04M9/00 |
主分类号 |
H04M1/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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