Document Type and Number:
Japanese Patent JPS5520446
Kind Code:
Y2
Application Number:
JP13144677U
Publication Date:
May 16, 1980
Filing Date:
September 30, 1977
Export Citation:
International Classes:
B24D13/06; A46B7/10; A46B13/02; B24D9/06; (IPC1-7): B24D13/06