KR930009918U - 전화기 사용 확인표시회로 - Google Patents
전화기 사용 확인표시회로Info
- Publication number
- KR930009918U KR930009918U KR2019910016492U KR910016492U KR930009918U KR 930009918 U KR930009918 U KR 930009918U KR 2019910016492 U KR2019910016492 U KR 2019910016492U KR 910016492 U KR910016492 U KR 910016492U KR 930009918 U KR930009918 U KR 930009918U
- Authority
- KR
- South Korea
- Prior art keywords
- phone use
- confirmation circuit
- use confirmation
- circuit
- phone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/82—Line monitoring circuits for call progress or status discrimination
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/02—Diodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/38—Displays
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019910016492U KR940004109Y1 (ko) | 1991-10-08 | 1991-10-08 | 전화기 사용 확인표시회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019910016492U KR940004109Y1 (ko) | 1991-10-08 | 1991-10-08 | 전화기 사용 확인표시회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930009918U true KR930009918U (ko) | 1993-05-26 |
KR940004109Y1 KR940004109Y1 (ko) | 1994-06-20 |
Family
ID=19320208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019910016492U KR940004109Y1 (ko) | 1991-10-08 | 1991-10-08 | 전화기 사용 확인표시회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940004109Y1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020039300A (ko) * | 2002-04-29 | 2002-05-25 | 임채왕 | 다기능 안내판 |
-
1991
- 1991-10-08 KR KR2019910016492U patent/KR940004109Y1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR940004109Y1 (ko) | 1994-06-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
FPAY | Annual fee payment |
Payment date: 20010529 Year of fee payment: 8 |
|
LAPS | Lapse due to unpaid annual fee |