NL41936C - - Google Patents
Info
- Publication number
- NL41936C NL41936C NL41936DA NL41936C NL 41936 C NL41936 C NL 41936C NL 41936D A NL41936D A NL 41936DA NL 41936 C NL41936 C NL 41936C
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US431630XA | 1934-09-07 | 1934-09-07 | |
| US743060A US2029693A (en) | 1934-09-07 | 1934-09-07 | Telephone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL41936C true NL41936C (en) |
Family
ID=26720103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL41936D NL41936C (en) | 1934-09-07 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB431630A (en) |
| NL (1) | NL41936C (en) |
-
0
- NL NL41936D patent/NL41936C/xx active
-
1935
- 1935-02-08 GB GB4104/35A patent/GB431630A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB431630A (en) | 1935-07-11 |