LU48743A1LU48743ALU48743ALU48743A1LU 48743 A1LU48743 A1LU 48743A1LU 48743 ALU48743 ALU 48743ALU 48743 ALU48743 ALU 48743ALU 48743 A1LU48743 A1LU 48743A1
Authority
LU
Luxembourg
Application number
LU48743A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to LU48743ApriorityCriticalpatent/LU48743A1/xx
Publication of LU48743A1publicationCriticalpatent/LU48743A1/xx
G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators