JPS5416674A - Contact monitoring device - Google Patents

Contact monitoring device

Info

Publication number
JPS5416674A
JPS5416674A JP8106477A JP8106477A JPS5416674A JP S5416674 A JPS5416674 A JP S5416674A JP 8106477 A JP8106477 A JP 8106477A JP 8106477 A JP8106477 A JP 8106477A JP S5416674 A JPS5416674 A JP S5416674A
Authority
JP
Japan
Prior art keywords
monitoring device
contact monitoring
contact
monitoring
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
JP8106477A
Other languages
Japanese (ja)
Inventor
Mitsuru Nakamura
Makoto Nukiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8106477A priority Critical patent/JPS5416674A/en
Publication of JPS5416674A publication Critical patent/JPS5416674A/en
Pending legal-status Critical Current

Links

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Keying Circuit Devices (AREA)
JP8106477A 1977-07-08 1977-07-08 Contact monitoring device Pending JPS5416674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8106477A JPS5416674A (en) 1977-07-08 1977-07-08 Contact monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8106477A JPS5416674A (en) 1977-07-08 1977-07-08 Contact monitoring device

Publications (1)

Publication Number Publication Date
JPS5416674A true JPS5416674A (en) 1979-02-07

Family

ID=13735958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8106477A Pending JPS5416674A (en) 1977-07-08 1977-07-08 Contact monitoring device

Country Status (1)

Country Link
JP (1) JPS5416674A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0241305U (en) * 1988-09-13 1990-03-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0241305U (en) * 1988-09-13 1990-03-22
JPH046086Y2 (en) * 1988-09-13 1992-02-20

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