NL193204A - - Google Patents
Info
- Publication number
- NL193204A NL193204A NL193204DA NL193204A NL 193204 A NL193204 A NL 193204A NL 193204D A NL193204D A NL 193204DA NL 193204 A NL193204 A NL 193204A
- 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)
- Noise Elimination (AREA)
- Transceivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL797770X | 1954-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL193204A true NL193204A (https=) |
Family
ID=19834572
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL101155D NL101155C (https=) | 1954-12-14 | ||
| NL193204D NL193204A (https=) | 1954-12-14 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL101155D NL101155C (https=) | 1954-12-14 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2829201A (https=) |
| DE (1) | DE1020061B (https=) |
| FR (1) | FR1147959A (https=) |
| GB (1) | GB797770A (https=) |
| NL (2) | NL193204A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3610835A (en) * | 1970-03-17 | 1971-10-05 | Bell Telephone Labor Inc | Loudspeaking telephone |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE430480A (https=) * | 1937-10-05 | |||
| US2568397A (en) * | 1947-02-20 | 1951-09-18 | Rca Corp | Telephone terminal equipment |
| US2488577A (en) * | 1947-11-04 | 1949-11-22 | Bell Telephone Labor Inc | Arrangement for limiting noise interference in carrier telephone systems |
-
0
- NL NL101155D patent/NL101155C/xx active
- NL NL193204D patent/NL193204A/xx unknown
-
1955
- 1955-11-21 US US548220A patent/US2829201A/en not_active Expired - Lifetime
- 1955-12-09 GB GB35403/55A patent/GB797770A/en not_active Expired
- 1955-12-12 DE DEN11581A patent/DE1020061B/de active Pending
- 1955-12-12 FR FR1147959D patent/FR1147959A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL101155C (https=) | |
| DE1020061B (de) | 1957-11-28 |
| GB797770A (en) | 1958-07-09 |
| US2829201A (en) | 1958-04-01 |
| FR1147959A (fr) | 1957-12-02 |