JPS647431U - - Google Patents

Info

Publication number
JPS647431U
JPS647431U JP10110987U JP10110987U JPS647431U JP S647431 U JPS647431 U JP S647431U JP 10110987 U JP10110987 U JP 10110987U JP 10110987 U JP10110987 U JP 10110987U JP S647431 U JPS647431 U JP S647431U
Authority
JP
Japan
Prior art keywords
failure
light
signal
light receiving
failure determination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10110987U
Other languages
English (en)
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP10110987U priority Critical patent/JPS647431U/ja
Publication of JPS647431U publication Critical patent/JPS647431U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Electronic Switches (AREA)
JP10110987U 1987-06-30 1987-06-30 Pending JPS647431U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10110987U JPS647431U (enrdf_load_stackoverflow) 1987-06-30 1987-06-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10110987U JPS647431U (enrdf_load_stackoverflow) 1987-06-30 1987-06-30

Publications (1)

Publication Number Publication Date
JPS647431U true JPS647431U (enrdf_load_stackoverflow) 1989-01-17

Family

ID=31329800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10110987U Pending JPS647431U (enrdf_load_stackoverflow) 1987-06-30 1987-06-30

Country Status (1)

Country Link
JP (1) JPS647431U (enrdf_load_stackoverflow)

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