JPS55139724A - Vacuum switching device - Google Patents

Vacuum switching device

Info

Publication number
JPS55139724A
JPS55139724A JP4661579A JP4661579A JPS55139724A JP S55139724 A JPS55139724 A JP S55139724A JP 4661579 A JP4661579 A JP 4661579A JP 4661579 A JP4661579 A JP 4661579A JP S55139724 A JPS55139724 A JP S55139724A
Authority
JP
Japan
Prior art keywords
switching device
vacuum switching
vacuum
switching
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
JP4661579A
Other languages
Japanese (ja)
Inventor
Tadatami Tsutsumi
Yasuharu Kanai
Kunihiko Takagi
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP4661579A priority Critical patent/JPS55139724A/en
Publication of JPS55139724A publication Critical patent/JPS55139724A/en
Pending legal-status Critical Current

Links

JP4661579A 1979-04-18 1979-04-18 Vacuum switching device Pending JPS55139724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4661579A JPS55139724A (en) 1979-04-18 1979-04-18 Vacuum switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4661579A JPS55139724A (en) 1979-04-18 1979-04-18 Vacuum switching device

Publications (1)

Publication Number Publication Date
JPS55139724A true JPS55139724A (en) 1980-10-31

Family

ID=12752197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4661579A Pending JPS55139724A (en) 1979-04-18 1979-04-18 Vacuum switching device

Country Status (1)

Country Link
JP (1) JPS55139724A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910045B1 (en) * 1969-10-31 1974-03-08
JPS616963A (en) * 1984-06-21 1986-01-13 Matsushita Electric Ind Co Ltd Diagnostic device of dtmf reception circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910045B1 (en) * 1969-10-31 1974-03-08
JPS616963A (en) * 1984-06-21 1986-01-13 Matsushita Electric Ind Co Ltd Diagnostic device of dtmf reception circuit

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