Document Type and Number:
Japanese Patent JPS6371201
Kind Code:
U
Application Number:
JP16266386U
Publication Date:
May 13, 1988
Filing Date:
October 23, 1986
Export Citation:
International Classes:
E01B31/02; B24B27/00; B60F1/00; B62B1/26; (IPC1-7): E01B31/02; B24B27/00