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Priority to JP13014973ApriorityCriticalpatent/JPS5416541B2/ja
Publication of JPS5080345ApublicationCriticalpatent/JPS5080345A/ja
Publication of JPS5416541B2publicationCriticalpatent/JPS5416541B2/ja
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