CH585826A5CH1739774ACH1739774ACH585826A5CH 585826 A5CH585826 A5CH 585826A5CH 1739774 ACH1739774 ACH 1739774ACH 1739774 ACH1739774 ACH 1739774ACH 585826 A5CH585826 A5CH 585826A5
Authority
CH
Switzerland
Application number
CH1739774A
Original Assignee
Schwitter Schlaepfer Eugen
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 filed by Schwitter Schlaepfer EugenfiledCriticalSchwitter Schlaepfer Eugen
Priority to CH1739774ApriorityCriticalpatent/CH585826A5/xx
Priority to DE19752558365prioritypatent/DE2558365A1/de
Publication of CH585826A5publicationCriticalpatent/CH585826A5/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
G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
G10K11/162—Selection of materials
G10K11/168—Plural layers of different materials, e.g. sandwiches
