NL32860C - - Google Patents
Info
- Publication number
- NL32860C NL32860C NL32860DA NL32860C NL 32860 C NL32860 C NL 32860C NL 32860D A NL32860D A NL 32860DA NL 32860 C NL32860 C NL 32860C
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE317852X | 1928-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL32860C true NL32860C (ja�@�@) |
Family
ID=6150894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL32860D NL32860C (ja�@�@) | 1928-08-25 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE363265A (ja�@�@) |
| FR (1) | FR41061E (ja�@�@) |
| GB (1) | GB317852A (ja�@�@) |
| NL (1) | NL32860C (ja�@�@) |
-
0
- BE BE363265D patent/BE363265A/xx unknown
- NL NL32860D patent/NL32860C/xx active
-
1929
- 1929-08-16 GB GB25091/29A patent/GB317852A/en not_active Expired
-
1931
- 1931-11-23 FR FR41061D patent/FR41061E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB317852A (en) | 1930-10-23 |
| BE363265A (ja�@�@) | |
| FR41061E (fr) | 1932-11-02 |