JPH0443053U - - Google Patents
Info
- Publication number
- JPH0443053U JPH0443053U JP8319490U JP8319490U JPH0443053U JP H0443053 U JPH0443053 U JP H0443053U JP 8319490 U JP8319490 U JP 8319490U JP 8319490 U JP8319490 U JP 8319490U JP H0443053 U JPH0443053 U JP H0443053U
- Authority
- JP
- Japan
- Prior art keywords
- side sound
- prevention circuit
- interphone
- telephone
- sound prevention
- 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
Links
- 239000004065 semiconductor Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8319490U JPH0443053U (fr) | 1990-08-06 | 1990-08-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8319490U JPH0443053U (fr) | 1990-08-06 | 1990-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0443053U true JPH0443053U (fr) | 1992-04-13 |
Family
ID=31630655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8319490U Pending JPH0443053U (fr) | 1990-08-06 | 1990-08-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0443053U (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01241954A (ja) * | 1988-03-23 | 1989-09-26 | Nec Corp | 平衡回路網 |
JPH0238853B2 (fr) * | 1983-03-17 | 1990-09-03 | Robaato Sutoorei Babinton |
-
1990
- 1990-08-06 JP JP8319490U patent/JPH0443053U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0238853B2 (fr) * | 1983-03-17 | 1990-09-03 | Robaato Sutoorei Babinton | |
JPH01241954A (ja) * | 1988-03-23 | 1989-09-26 | Nec Corp | 平衡回路網 |