发明名称 |
Key-operated switches |
摘要 |
A key operated switch device in which any one of a set of different keys may be utilized to operate a particular combination of sets of electrical contacts unique to that key, the sets of electrical contacts being provided by reed switches located adjacent a keyway adapted to receive any one of the keys in said set, and the keys incorporating different arrangements of magnets or magnetized zones adapted to actuate different combinations of said reed switches.
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申请公布号 |
US3944762(A) |
申请公布日期 |
1976.03.16 |
申请号 |
US19740505157 |
申请日期 |
1974.09.11 |
申请人 |
VEEDER INDUSTRIES, INC. |
发明人 |
COLEMAN, ARTHUR;SWAN, ANDREW;DOIG, DAVID |
分类号 |
G07C9/00;H01H36/00;(IPC1-7):H01H9/00 |
主分类号 |
G07C9/00 |
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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