FR834981A - Filtre d'onde électrique - Google Patents
Filtre d'onde électriqueInfo
- Publication number
- FR834981A FR834981A FR834981DA FR834981A FR 834981 A FR834981 A FR 834981A FR 834981D A FR834981D A FR 834981DA FR 834981 A FR834981 A FR 834981A
- Authority
- FR
- France
- Prior art keywords
- wave filter
- electric wave
- electric
- filter
- wave
- Prior art date
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
- H04H20/81—Wired systems using carrier waves combined with telephone network over which the broadcast is continuously available
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE834981X | 1937-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR834981A true FR834981A (fr) | 1938-12-08 |
Family
ID=6760780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR834981D Expired FR834981A (fr) | 1937-03-13 | 1938-03-08 | Filtre d'onde électrique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR834981A (fr) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486230A (en) * | 1944-07-25 | 1949-10-25 | Hartford Nat Bank & Trust Co | Radio receiver apparatus |
US2496683A (en) * | 1947-03-06 | 1950-02-07 | Paravox Inc | Hearing aid chassis and assembly |
US2497336A (en) * | 1946-10-31 | 1950-02-14 | Dictograph Products Co Inc | Casing for unitary hearing aids |
US2500301A (en) * | 1945-12-21 | 1950-03-14 | Paraphone Hearing Aid Inc | Molded chassis for hearing aid apparatus |
US2539146A (en) * | 1947-03-19 | 1951-01-23 | Loewy Raymond | Transparent block radio cabinet |
US2553255A (en) * | 1948-09-28 | 1951-05-15 | Bell Telephone Labor Inc | Telephone substation apparatus |
US2564425A (en) * | 1948-07-08 | 1951-08-14 | Bell Telephone Labor Inc | Unitary amplifier for hearing aids |
US2821566A (en) * | 1952-08-08 | 1958-01-28 | Sylvania Electric Prod | Unitary radio chassis |
-
1938
- 1938-03-08 FR FR834981D patent/FR834981A/fr not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486230A (en) * | 1944-07-25 | 1949-10-25 | Hartford Nat Bank & Trust Co | Radio receiver apparatus |
US2500301A (en) * | 1945-12-21 | 1950-03-14 | Paraphone Hearing Aid Inc | Molded chassis for hearing aid apparatus |
US2497336A (en) * | 1946-10-31 | 1950-02-14 | Dictograph Products Co Inc | Casing for unitary hearing aids |
US2496683A (en) * | 1947-03-06 | 1950-02-07 | Paravox Inc | Hearing aid chassis and assembly |
US2539146A (en) * | 1947-03-19 | 1951-01-23 | Loewy Raymond | Transparent block radio cabinet |
US2564425A (en) * | 1948-07-08 | 1951-08-14 | Bell Telephone Labor Inc | Unitary amplifier for hearing aids |
US2553255A (en) * | 1948-09-28 | 1951-05-15 | Bell Telephone Labor Inc | Telephone substation apparatus |
US2821566A (en) * | 1952-08-08 | 1958-01-28 | Sylvania Electric Prod | Unitary radio chassis |
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