FR937998A - - Google Patents
Info
- Publication number
- FR937998A FR937998A FR937998DA FR937998A FR 937998 A FR937998 A FR 937998A FR 937998D A FR937998D A FR 937998DA FR 937998 A FR937998 A FR 937998A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
- H03D7/1416—Balanced arrangements with discharge tubes having more than two electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL622763X | 1944-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR937998A true FR937998A (pt) | 1948-10-12 |
Family
ID=19788475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR937998D Expired FR937998A (pt) | 1944-07-26 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2554107A (pt) |
| DE (1) | DE829604C (pt) |
| FR (1) | FR937998A (pt) |
| GB (1) | GB622763A (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2753457A (en) * | 1952-03-18 | 1956-07-03 | Zenith Radio Corp | Frequency-selective electrical network |
| US5465418A (en) * | 1993-04-29 | 1995-11-07 | Drexel University | Self-oscillating mixer circuits and methods therefor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1978446A (en) * | 1930-05-13 | 1934-10-30 | Csf | Heterodyne system |
| BE387351A (pt) * | 1931-03-23 | |||
| US2101438A (en) * | 1935-02-27 | 1937-12-07 | Rca Corp | Neutralized coupling circuit |
| GB507495A (en) * | 1936-12-21 | 1939-06-15 | Loewe Opta Gmbh | Improvements in oscillatory circuit arrangements for modulated ultra-short waves |
| NL58874C (pt) * | 1938-01-29 | |||
| GB544675A (en) * | 1940-09-21 | 1942-04-23 | Du Pont | Improvements in or relating to the prevention of caking or setting of ammonium nitrate or ammonium nitrate compositions |
| NL99734B (pt) * | 1940-12-05 | |||
| US2434474A (en) * | 1941-01-28 | 1948-01-13 | Hartford Nat Bank & Trust Co | Circuit arrangement for ultra short waves |
| BE444311A (pt) * | 1941-01-31 |
-
0
- FR FR937998D patent/FR937998A/fr not_active Expired
-
1947
- 1947-02-12 US US728134A patent/US2554107A/en not_active Expired - Lifetime
- 1947-03-31 GB GB8633/47A patent/GB622763A/en not_active Expired
-
1948
- 1948-11-05 DE DEP20706D patent/DE829604C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB622763A (en) | 1949-05-06 |
| DE829604C (de) | 1952-01-28 |
| US2554107A (en) | 1951-05-22 |