JPH0644204Y2 - 共鳴り防止機能付電話回線使用中表示器 - Google Patents

共鳴り防止機能付電話回線使用中表示器

Info

Publication number
JPH0644204Y2
JPH0644204Y2 JP744390U JP744390U JPH0644204Y2 JP H0644204 Y2 JPH0644204 Y2 JP H0644204Y2 JP 744390 U JP744390 U JP 744390U JP 744390 U JP744390 U JP 744390U JP H0644204 Y2 JPH0644204 Y2 JP H0644204Y2
Authority
JP
Japan
Prior art keywords
line
connection device
loop
circuit
external connection
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.)
Expired - Lifetime
Application number
JP744390U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0398552U (en]
Inventor
義一 今野
幸雄 増田
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP744390U priority Critical patent/JPH0644204Y2/ja
Publication of JPH0398552U publication Critical patent/JPH0398552U/ja
Application granted granted Critical
Publication of JPH0644204Y2 publication Critical patent/JPH0644204Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

JP744390U 1990-01-29 1990-01-29 共鳴り防止機能付電話回線使用中表示器 Expired - Lifetime JPH0644204Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP744390U JPH0644204Y2 (ja) 1990-01-29 1990-01-29 共鳴り防止機能付電話回線使用中表示器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP744390U JPH0644204Y2 (ja) 1990-01-29 1990-01-29 共鳴り防止機能付電話回線使用中表示器

Publications (2)

Publication Number Publication Date
JPH0398552U JPH0398552U (en]) 1991-10-14
JPH0644204Y2 true JPH0644204Y2 (ja) 1994-11-14

Family

ID=31511101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP744390U Expired - Lifetime JPH0644204Y2 (ja) 1990-01-29 1990-01-29 共鳴り防止機能付電話回線使用中表示器

Country Status (1)

Country Link
JP (1) JPH0644204Y2 (en])

Also Published As

Publication number Publication date
JPH0398552U (en]) 1991-10-14

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term