NL84986C - - Google Patents
Info
- Publication number
- NL84986C NL84986C NL146022A NL146022A NL84986C NL 84986 C NL84986 C NL 84986C NL 146022 A NL146022 A NL 146022A NL 146022 A NL146022 A NL 146022A NL 84986 C NL84986 C NL 84986C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/38—Impedance-matching networks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/34—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL146022A NL84986C (da) | 1949-04-20 | 1949-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL146022A NL84986C (da) | 1949-04-20 | 1949-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL84986C true NL84986C (da) | 1957-05-15 |
Family
ID=1831424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL146022A NL84986C (da) | 1949-04-20 | 1949-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL84986C (da) |
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1949
- 1949-04-20 NL NL146022A patent/NL84986C/xx active