NL77489C - - Google Patents
Info
- Publication number
- NL77489C NL77489C NL77489DA NL77489C NL 77489 C NL77489 C NL 77489C NL 77489D A NL77489D A NL 77489DA NL 77489 C NL77489 C NL 77489C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/16—Monitoring arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
- H04B17/401—Monitoring; Testing of relay systems with selective localization
- H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
- H04B17/404—Monitoring; Testing of relay systems with selective localization using different frequencies selected by local filters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB302747X | 1949-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL77489C true NL77489C (en) | 1900-01-01 |
Family
ID=10305047
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6810456.A NL156720B (en) | 1949-10-21 | ||
| NL77489D NL77489C (en) | 1949-10-21 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6810456.A NL156720B (en) | 1949-10-21 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE498814A (en) |
| CH (1) | CH302747A (en) |
| FR (1) | FR1029593A (en) |
| GB (1) | GB665952A (en) |
| NL (2) | NL77489C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE535541A (en) * | 1954-02-09 | 1900-01-01 |
-
0
- NL NL6810456.A patent/NL156720B/xx unknown
- BE BE498814D patent/BE498814A/xx unknown
- NL NL77489D patent/NL77489C/xx active
-
1949
- 1949-10-21 GB GB27089/49A patent/GB665952A/en not_active Expired
-
1950
- 1950-10-20 FR FR1029593D patent/FR1029593A/en not_active Expired
- 1950-10-21 CH CH302747D patent/CH302747A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE498814A (en) | 1900-01-01 |
| CH302747A (en) | 1954-10-31 |
| NL156720B (en) | |
| FR1029593A (en) | 1953-06-03 |
| GB665952A (en) | 1952-02-06 |