Document Type and Number:
Japanese Patent JPH0121728
Kind Code:
Y2
Application Number:
JP6072881U
Publication Date:
June 28, 1989
Filing Date:
April 28, 1981
Export Citation:
International Classes:
B24B31/02; A63F7/02; B24B31/10; (IPC1-7): B24B31/10
Next Patent: JPH0121729