NL249801A - - Google Patents
Info
- Publication number
- NL249801A NL249801A NL249801DA NL249801A NL 249801 A NL249801 A NL 249801A NL 249801D A NL249801D A NL 249801DA NL 249801 A NL249801 A NL 249801A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0006—Permanent magnet actuating reed switches
- H01H36/004—Permanent magnet actuating reed switches push-button-operated, e.g. for keyboards
-
- 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
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST14910A DE1082629B (de) | 1959-03-21 | 1959-03-21 | Schaltvorrichtung mit mehreren Tasten und mit Schutzrohrankerkontakten |
| DEST14938A DE1086281B (de) | 1959-03-21 | 1959-03-26 | Tastengesteuerte Schaltvorrichtung mit mehreren in Reihe angeordneten Tasten und mitSchutzrohrankerkontakten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL249801A true NL249801A (pl) |
Family
ID=25993908
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL249801D NL249801A (pl) | 1959-03-21 | ||
| NL249668D NL249668A (pl) | 1959-03-21 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL249668D NL249668A (pl) | 1959-03-21 |
Country Status (3)
| Country | Link |
|---|---|
| DE (2) | DE1082629B (pl) |
| GB (1) | GB935474A (pl) |
| NL (2) | NL249668A (pl) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3129302A (en) * | 1961-03-30 | 1964-04-14 | Int Standard Electric Corp | Switching device comprising reed contacts operated by permanent magnets |
| DE1271775B (de) * | 1964-02-04 | 1968-07-04 | Zentrallaboratorium Rundfunk | Einrichtung zum Umschalten von elektrischen Nachrichtengeraeten, insbesondere von Rundfunkempfangsgeraeten |
| NL6803209A (pl) * | 1968-03-07 | 1969-09-09 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1015054B (de) * | 1954-11-24 | 1957-09-05 | Standard Elektrik Ag | Tastenstreifen fuer Fernmeldegeraete |
| DE1027249B (de) * | 1956-09-27 | 1958-04-03 | Siemens Ag | Schrittweise schaltender Waehler mit Schutzrohrkontakten |
-
0
- NL NL249801D patent/NL249801A/xx unknown
- NL NL249668D patent/NL249668A/xx unknown
-
1959
- 1959-03-21 DE DEST14910A patent/DE1082629B/de active Pending
- 1959-03-26 DE DEST14938A patent/DE1086281B/de active Pending
-
1960
- 1960-03-18 GB GB966660A patent/GB935474A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL249668A (pl) | |
| GB935474A (en) | 1963-08-28 |
| DE1082629B (de) | 1960-06-02 |
| DE1086281B (de) | 1960-08-04 |