JPS5237084A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Smoke detector
Assignee: Kokusai Gijutsu Kaihatsu Co Ltd
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Filing: 1975-09-19
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Granted: —
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Expires: 1995-09-19
Abstract
Abstract PURPOSE:Receiver outputs are fed back, memorized, compared and indentified by flashing a switch upon lapse of time, whereby correct alarm is given despite decrease in the quantity of transmission light owing to deterioration, etc. of the device.
Inventors
- 👤 Shunsaku Nakauchi
- 👤 Akifusa Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-02 22:26
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01N21/274
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
JPS4923685A
Cited
JPS4958884A
Cited
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