Document Type and Number:
Japanese Patent JPS51144887
Kind Code:
U
Application Number:
JP6559675U
Publication Date:
November 20, 1976
Filing Date:
May 15, 1975
Export Citation:
International Classes:
B23B31/20; (IPC1-7): B23B31/20
Foreign References:
| GB587076A | 1947-04-14 |