LU69951A1 - - Google Patents
Info
- Publication number
- LU69951A1 LU69951A1 LU69951A LU69951A LU69951A1 LU 69951 A1 LU69951 A1 LU 69951A1 LU 69951 A LU69951 A LU 69951A LU 69951 A LU69951 A LU 69951A LU 69951 A1 LU69951 A1 LU 69951A1
- Authority
- LU
- Luxembourg
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
- H04R27/00—Public address systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
- Audible And Visible Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732321898 DE2321898C3 (de) | 1973-04-30 | 1973-04-30 | Elektroakustische Anlage mit mehreren räumlich verteilten Mikrofonen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU69951A1 true LU69951A1 (https=) | 1974-08-06 |
Family
ID=5879739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU69951A LU69951A1 (https=) | 1973-04-30 | 1974-04-29 |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT330269B (https=) |
| BE (1) | BE814413A (https=) |
| CH (1) | CH564297A5 (https=) |
| DE (1) | DE2321898C3 (https=) |
| ES (1) | ES424705A1 (https=) |
| FR (1) | FR2227705B3 (https=) |
| LU (1) | LU69951A1 (https=) |
| NL (1) | NL7405680A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3505348A1 (de) * | 1985-02-15 | 1986-08-21 | Helmut 5330 Königswinter Brähler | Rechnergesteuerte elektroakustische diskussionsanlage |
-
1973
- 1973-04-30 DE DE19732321898 patent/DE2321898C3/de not_active Expired
-
1974
- 1974-03-28 ES ES424705A patent/ES424705A1/es not_active Expired
- 1974-04-05 AT AT288574A patent/AT330269B/de not_active IP Right Cessation
- 1974-04-24 FR FR7414269A patent/FR2227705B3/fr not_active Expired
- 1974-04-25 CH CH571574A patent/CH564297A5/xx not_active IP Right Cessation
- 1974-04-26 NL NL7405680A patent/NL7405680A/xx not_active Application Discontinuation
- 1974-04-29 LU LU69951A patent/LU69951A1/xx unknown
- 1974-04-30 BE BE143801A patent/BE814413A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE814413A (fr) | 1974-10-30 |
| FR2227705A1 (https=) | 1974-11-22 |
| NL7405680A (https=) | 1974-11-01 |
| ES424705A1 (es) | 1976-05-16 |
| ATA288574A (de) | 1975-09-15 |
| CH564297A5 (https=) | 1975-07-15 |
| DE2321898A1 (de) | 1974-11-14 |
| DE2321898C3 (de) | 1975-10-23 |
| DE2321898B2 (de) | 1975-03-06 |
| AT330269B (de) | 1976-06-25 |
| FR2227705B3 (https=) | 1977-03-04 |