发明名称 |
SINGLE CHAMBER IONIZATION SMOKE DETECTOR |
摘要 |
An ionization smoke detecotor having a single open ionization chamber which is connected with a field effect transistor and wherein the leakage impedance between the gate and drain of the transistor serves as a high impedance path.
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申请公布号 |
US3676678(A) |
申请公布日期 |
1972.07.11 |
申请号 |
USD3676678 |
申请日期 |
1970.02.10 |
申请人 |
NITTAN CO. LTD. |
发明人 |
NAOKI TAKAHASHI |
分类号 |
G08B17/113;G01N27/66;G01N33/00;G08B17/10;G08B17/11;(IPC1-7):G01N21/26 |
主分类号 |
G08B17/113 |
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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