CH551124A - Altoparlante a tromba. - Google Patents
Altoparlante a tromba.Info
- Publication number
- CH551124A CH551124A CH854172A CH854172A CH551124A CH 551124 A CH551124 A CH 551124A CH 854172 A CH854172 A CH 854172A CH 854172 A CH854172 A CH 854172A CH 551124 A CH551124 A CH 551124A
- Authority
- CH
- Switzerland
- Prior art keywords
- horn speaker
- horn
- speaker
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2569671 | 1971-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH551124A true CH551124A (it) | 1974-06-28 |
Family
ID=11217467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH854172A CH551124A (it) | 1971-06-09 | 1972-06-08 | Altoparlante a tromba. |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH551124A (it) |
| DE (1) | DE2228827C2 (it) |
| ES (1) | ES181623Y (it) |
| FR (1) | FR2143715B3 (it) |
| NL (1) | NL7207928A (it) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1592246A (en) * | 1976-09-23 | 1981-07-01 | Isaac T P | Sound projection system |
| FR2495423B1 (fr) * | 1980-11-28 | 1989-11-10 | Topalian Daniel | Enceinte acoustique a pavillon double avant non replie, et caisson ferme arriere |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE522584A (it) * | 1952-09-11 |
-
1972
- 1972-06-08 CH CH854172A patent/CH551124A/it not_active IP Right Cessation
- 1972-06-09 DE DE19722228827 patent/DE2228827C2/de not_active Expired
- 1972-06-09 NL NL7207928A patent/NL7207928A/xx active Search and Examination
- 1972-06-09 ES ES1972181623U patent/ES181623Y/es not_active Expired
- 1972-06-09 FR FR7221508A patent/FR2143715B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES181623U (es) | 1973-04-01 |
| DE2228827A1 (de) | 1973-01-25 |
| DE2228827C2 (de) | 1983-12-01 |
| NL7207928A (it) | 1972-12-12 |
| FR2143715A1 (it) | 1973-02-09 |
| ES181623Y (es) | 1974-03-16 |
| FR2143715B3 (it) | 1975-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK140360B (da) | Elektroakustisk omsætter. | |
| DK137820B (da) | Elektroakustisk omformer. | |
| BR7208381D0 (pt) | Microfone eletrete | |
| NL173009B (nl) | Hoofdtelefoonsamenstel. | |
| FR2335117A1 (fr) | Casque a ecouteurs | |
| NL164722C (nl) | Elektro-akoestische omzetter. | |
| ES168933Y (es) | Una muneca. | |
| NL7500881A (nl) | Luidsprekerhoorn. | |
| DK140347B (da) | Fender. | |
| CH550298A (de) | Schallschutzwand. | |
| CH558725A (de) | Sospensione pneumatica antriore a ruote indipendenti per autobur e veicili industriali. | |
| CH551124A (it) | Altoparlante a tromba. | |
| ES192261Y (es) | Bocina. | |
| IT957225B (it) | Trasduttore elettroacustico | |
| CH555496A (de) | Vanne a tiroir. | |
| IT957218B (it) | Trasduttore elettroacustico | |
| ES190147Y (es) | Muneco con dispositivo sonoro. | |
| CH549168A (de) | Verbindung. | |
| ES172440Y (es) | Un juguete sonoro. | |
| ES172515Y (es) | Un juguete sonoro. | |
| ES171670Y (es) | Juguete sonoro. | |
| ES166011Y (es) | Juguete sonoro. | |
| ES167747Y (es) | Dispositivo visionador sonorizado. | |
| ES166833Y (es) | Una muneca. | |
| ES171411Y (es) | Una brida. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |