CH439403A - Switchboard for telephone system - Google Patents
Switchboard for telephone systemInfo
- Publication number
- CH439403A CH439403A CH164666A CH164666A CH439403A CH 439403 A CH439403 A CH 439403A CH 164666 A CH164666 A CH 164666A CH 164666 A CH164666 A CH 164666A CH 439403 A CH439403 A CH 439403A
- Authority
- CH
- Switzerland
- Prior art keywords
- switchboard
- telephone system
- telephone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
-
- 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
- H04M1/0289—Telephone sets for operators
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR4628A FR1443914A (en) | 1965-02-05 | 1965-02-05 | Switchboard with keys |
Publications (1)
Publication Number | Publication Date |
---|---|
CH439403A true CH439403A (en) | 1967-07-15 |
Family
ID=8570235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH164666A CH439403A (en) | 1965-02-05 | 1966-02-02 | Switchboard for telephone system |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH439403A (en) |
ES (1) | ES322632A1 (en) |
FR (1) | FR1443914A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2522227A1 (en) * | 1982-02-25 | 1983-08-26 | Esteve Salvador | LIGHT RECEIVER FOR TELEPHONE CALL STATUS AND SIGNAL TRANSMITTER SUITABLE FOR THIS USE |
-
1965
- 1965-02-05 FR FR4628A patent/FR1443914A/en not_active Expired
-
1966
- 1966-02-02 CH CH164666A patent/CH439403A/en unknown
- 1966-02-04 ES ES0322632A patent/ES322632A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES322632A1 (en) | 1966-07-16 |
FR1443914A (en) | 1966-07-01 |
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