Document Type and Number:
Japanese Patent JPS51123793
Kind Code:
U
Application Number:
JP4163675U
Publication Date:
October 06, 1976
Filing Date:
March 28, 1975
Export Citation:
International Classes:
H04R1/00; A47C7/72; A47C9/08; A61H23/02; H04R1/02; H04R9/00; (IPC1-7): A61H23/02; A47C9/08
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