NL30169C - - Google Patents
Info
- Publication number
- NL30169C NL30169C NL30169DA NL30169C NL 30169 C NL30169 C NL 30169C NL 30169D A NL30169D A NL 30169DA NL 30169 C NL30169 C NL 30169C
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mechanical Engineering (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL1864381X | 1926-04-24 | ||
| US172490A US1864381A (en) | 1926-04-24 | 1927-03-03 | Circuit arrangement for sending of current impulses over telephone lines |
| US457358A US1822635A (en) | 1927-03-03 | 1930-05-29 | Circuit arrangement for the sending of current impulses over telephone lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL30169C true NL30169C (pt) |
Family
ID=27354042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL30169D NL30169C (pt) | 1926-04-24 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1864381A (pt) |
| BE (1) | BE343824A (pt) |
| NL (1) | NL30169C (pt) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535872A (en) * | 1947-04-25 | 1950-12-26 | American Telephone & Telegraph | Signaling system |
-
0
- BE BE343824D patent/BE343824A/xx unknown
- NL NL30169D patent/NL30169C/xx active
-
1927
- 1927-03-03 US US172490A patent/US1864381A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1864381A (en) | 1932-06-21 |
| BE343824A (pt) |