NL30423C - - Google Patents
Info
- Publication number
- NL30423C NL30423C NL30423DA NL30423C NL 30423 C NL30423 C NL 30423C NL 30423D A NL30423D A NL 30423DA NL 30423 C NL30423 C NL 30423C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE308816X | 1928-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL30423C true NL30423C (xx) |
Family
ID=20307588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL30423D NL30423C (xx) | 1928-03-31 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US1958167A (xx) |
| AT (1) | AT116983B (xx) |
| BE (1) | BE359396A (xx) |
| DE (2) | DE495106C (xx) |
| FR (1) | FR672141A (xx) |
| GB (1) | GB308816A (xx) |
| NL (1) | NL30423C (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE755785C (de) * | 1933-03-16 | 1952-03-31 | Marconi Wireless Telegraph Co | Anordnung zur automatischen Einschaltung eines Senders mit Hilfe von gleichgerichteten Modulationsschwingungen |
-
0
- NL NL30423D patent/NL30423C/xx active
-
1929
- 1929-03-26 AT AT116983D patent/AT116983B/de active
- 1929-03-27 GB GB9901/29A patent/GB308816A/en not_active Expired
- 1929-03-27 FR FR672141D patent/FR672141A/fr not_active Expired
- 1929-03-29 US US351027A patent/US1958167A/en not_active Expired - Lifetime
- 1929-03-29 BE BE359396D patent/BE359396A/xx unknown
- 1929-03-31 DE DET36670D patent/DE495106C/de not_active Expired
-
1932
- 1932-11-09 DE DET41643D patent/DE593628C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE359396A (xx) | 1929-04-30 |
| US1958167A (en) | 1934-05-08 |
| DE495106C (de) | 1930-04-03 |
| FR672141A (fr) | 1929-12-23 |
| GB308816A (en) | 1930-06-12 |
| AT116983B (de) | 1930-03-25 |
| DE593628C (de) | 1934-03-02 |