JPS61162176U - - Google Patents
Info
- Publication number
- JPS61162176U JPS61162176U JP4484985U JP4484985U JPS61162176U JP S61162176 U JPS61162176 U JP S61162176U JP 4484985 U JP4484985 U JP 4484985U JP 4484985 U JP4484985 U JP 4484985U JP S61162176 U JPS61162176 U JP S61162176U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- telephone
- telephone line
- communication network
- hook
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Telephone Set Structure (AREA)
- Devices For Supply Of Signal Current (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4484985U JPH079474Y2 (ja) | 1985-03-29 | 1985-03-29 | 電話機の停電対策回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4484985U JPH079474Y2 (ja) | 1985-03-29 | 1985-03-29 | 電話機の停電対策回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61162176U true JPS61162176U (enrdf_load_html_response) | 1986-10-07 |
JPH079474Y2 JPH079474Y2 (ja) | 1995-03-06 |
Family
ID=30557801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4484985U Expired - Lifetime JPH079474Y2 (ja) | 1985-03-29 | 1985-03-29 | 電話機の停電対策回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH079474Y2 (enrdf_load_html_response) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01103946U (enrdf_load_html_response) * | 1987-12-26 | 1989-07-13 |
-
1985
- 1985-03-29 JP JP4484985U patent/JPH079474Y2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01103946U (enrdf_load_html_response) * | 1987-12-26 | 1989-07-13 |
Also Published As
Publication number | Publication date |
---|---|
JPH079474Y2 (ja) | 1995-03-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS61162176U (enrdf_load_html_response) | ||
JPS62210770A (ja) | 空き電話回線を利用したトーキサービス方法 | |
CN206042133U (zh) | 一种键面可存号的指挥电话机 | |
JPH0718203Y2 (ja) | 電話機の停電対策回路 | |
CN214507157U (zh) | 一种低成本多线消防电话系统 | |
JPH0354452Y2 (enrdf_load_html_response) | ||
JPS5952862B2 (ja) | インタ−ホン装置 | |
CN2172931Y (zh) | 一种有线的电子对讲机 | |
JPS6221097Y2 (enrdf_load_html_response) | ||
CN2134002Y (zh) | 具有留言、应答、录音的电话扩充装置 | |
CN201048394Y (zh) | 单键拨号通话器 | |
JP3239010B2 (ja) | 電話機の切り替え方式 | |
KR880001332Y1 (ko) | 무극성 핸드프리 인터폰. | |
JP2528001Y2 (ja) | 電話機のペ−ジング放送装置 | |
JPS5915153Y2 (ja) | 打合せ電話回路 | |
JPH036063Y2 (enrdf_load_html_response) | ||
JPS6310846A (ja) | 電話機のリレ−復旧回路 | |
CN201042056Y (zh) | 电话交换呼叫器 | |
JPS63142946A (ja) | 拡声電話機 | |
JPS61139150A (ja) | スイツチ回路 | |
JPS6172956U (enrdf_load_html_response) | ||
JPS6066551A (ja) | 受話拡声付電話機 | |
JPH10145466A (ja) | Phs電話機 | |
JPH03145849A (ja) | 電話装置 | |
JPH03292039A (ja) | ドアホン装置 |