Document Type and Number:
Japanese Patent JPS5235221
Kind Code:
U
Application Number:
JP12205975U
Publication Date:
March 12, 1977
Filing Date:
September 03, 1975
Export Citation:
International Classes:
B08B3/12; B06B1/00; B06B1/06; H04R3/00; H04R17/10; (IPC1-7): H04R17/10; B06B1/00; B08B3/12; H04R3/00