Bibliographic data

Document DE000003737873C2 (Pages: 8)

Bibliographic data Document DE000003737873C2 (Pages: 8)
INID Criterion Field Contents
54 Title TI [DE] Verwendung von Hörsprechgarnituren zur Verbesserung der Sprachverständlichkeit in störschallerfüllter Umgebung
71/73 Applicant/owner PA HEAD acoustics GmbH Kopfbezogene Aufnahme- und Wiedergabetechnik Meßtechnik, 5100 Aachen, DE
72 Inventor IN Genuit, Klaus, Dr., 5100 Aachen, DE
22/96 Application date AD Nov 7, 1987
21 Application number AN 3737873
Country of application AC DE
Publication date PUB Feb 24, 1994
33
31
32		 Priority data PRC
PRN
PRD

51 IPC main class ICM H04R 1/22
51 IPC secondary class ICS H04R 1/32
IPC additional class ICA A61F 11/02
IPC index class ICI
Cooperative patent classification CPC H04R 3/12
H04S 1/005
MCD main class MCM
MCD secondary class MCS H04R 3/12 (2006.01)
H04R 5/033 (2006.01)
H04S 1/00 (2006.01)
MCD additional class MCA
57 Abstract AB
56 Cited documents identified in the search CT
56 Cited documents indicated by the applicant CT
56 Cited non-patent literature identified in the search CTNP
56 Cited non-patent literature indicated by the applicant CTNP
Citing documents Determine documents
Sequence listings
Search file IPC ICP H04R 1/22
H04R 1/32