FR843628A - Loudspeaker enhancements - Google Patents
Loudspeaker enhancementsInfo
- Publication number
- FR843628A FR843628A FR843628DA FR843628A FR 843628 A FR843628 A FR 843628A FR 843628D A FR843628D A FR 843628DA FR 843628 A FR843628 A FR 843628A
- Authority
- FR
- France
- Prior art keywords
- enhancements
- loudspeaker
- loudspeaker enhancements
- 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
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2548537A GB501152A (en) | 1937-09-20 | 1937-09-20 | Improvements in loud speakers |
Publications (1)
Publication Number | Publication Date |
---|---|
FR843628A true FR843628A (en) | 1939-07-06 |
Family
ID=10228461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR843628D Expired FR843628A (en) | 1937-09-20 | 1938-09-19 | Loudspeaker enhancements |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR843628A (en) |
GB (1) | GB501152A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE945768C (en) * | 1949-06-05 | 1956-07-19 | Siemens Ag | Loudspeaker group arrangement consisting of several loudspeakers built in a row in a common baffle-like baffle |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1199326B (en) * | 1956-09-21 | 1965-08-26 | Deutsche Post Inst | Loudspeaker whose membrane movement is mechanically dampened |
GB1456501A (en) * | 1988-03-08 | 1976-11-24 | Indep Broadcasting Authority | Television apparatus |
-
1937
- 1937-09-20 GB GB2548537A patent/GB501152A/en not_active Expired
-
1938
- 1938-09-19 FR FR843628D patent/FR843628A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE945768C (en) * | 1949-06-05 | 1956-07-19 | Siemens Ag | Loudspeaker group arrangement consisting of several loudspeakers built in a row in a common baffle-like baffle |
Also Published As
Publication number | Publication date |
---|---|
GB501152A (en) | 1939-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR920293A (en) | Microphone | |
FR831543A (en) | Brake improvements | |
FR832894A (en) | Packaging improvements | |
FR819398A (en) | Flexible controls enhancements | |
FR843628A (en) | Loudspeaker enhancements | |
FR837328A (en) | Sulfate enhancements | |
FR827828A (en) | Breather enhancements | |
FR43928E (en) | Loudspeaker enhancements | |
FR843459A (en) | Screwdriver enhancements | |
FR831492A (en) | Brake improvements | |
FR830330A (en) | Clothing enhancements | |
FR831037A (en) | Loudspeaker enhancements | |
FR837055A (en) | Underwear improvement | |
FR827276A (en) | Improvements to electrodynamic loudspeakers | |
FR823417A (en) | Loudspeaker enhancements | |
FR829657A (en) | Bra enhancements | |
FR48300E (en) | Soap enhancements | |
FR835077A (en) | Silent improvements | |
FR802837A (en) | Loudspeaker enhancements | |
FR835700A (en) | Brush enhancements | |
FR831772A (en) | Brake improvements | |
FR827526A (en) | Multicellular loudspeaker improvements | |
FR844942A (en) | Speaker Enclosures Improvements | |
FR820440A (en) | Hats enhancements | |
FR831133A (en) | Bra enhancements |