FR243371A - - Google Patents
Info
- Publication number
- FR243371A FR243371A FR243371DA FR243371A FR 243371 A FR243371 A FR 243371A FR 243371D A FR243371D A FR 243371DA FR 243371 A FR243371 A FR 243371A
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
-
- 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
- H03D7/18—Modifications of frequency-changers for eliminating image frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US751031A US1712036A (en) | 1924-11-20 | 1924-11-20 | Electrical signaling system and signaling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR243371A true FR243371A (enrdf_load_stackoverflow) |
Family
ID=25020185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR243371D Active FR243371A (enrdf_load_stackoverflow) | 1924-11-20 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1712036A (enrdf_load_stackoverflow) |
| FR (1) | FR243371A (enrdf_load_stackoverflow) |
| GB (1) | GB243371A (enrdf_load_stackoverflow) |
| NL (1) | NL18312C (enrdf_load_stackoverflow) |
-
0
- FR FR243371D patent/FR243371A/fr active Active
- NL NL18312D patent/NL18312C/xx active
-
1924
- 1924-11-20 US US751031A patent/US1712036A/en not_active Expired - Lifetime
-
1925
- 1925-11-19 GB GB29246/25A patent/GB243371A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB243371A (en) | 1926-06-24 |
| NL18312C (enrdf_load_stackoverflow) | |
| US1712036A (en) | 1929-05-07 |