NL23781C - - Google Patents
Info
- Publication number
- NL23781C NL23781C NL23781DA NL23781C NL 23781 C NL23781 C NL 23781C NL 23781D A NL23781D A NL 23781DA NL 23781 C NL23781 C NL 23781C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses
- H04Q1/36—Pulse-correcting arrangements, e.g. for reducing effects due to interference
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL630157X | 1926-03-09 | ||
| PL1720107X | 1926-03-09 | ||
| PL498752X | 1926-03-09 | ||
| PL267499X | 1926-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL23781C true NL23781C (https=) |
Family
ID=27484408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL23781D NL23781C (https=) | 1926-03-09 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1720107A (https=) |
| NL (1) | NL23781C (https=) |
-
0
- NL NL23781D patent/NL23781C/xx active
-
1927
- 1927-03-03 US US172489A patent/US1720107A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1720107A (en) | 1929-07-09 |