Document Type and Number:
Japanese Patent JPH031717
Kind Code:
U
Application Number:
JP6380789U
Publication Date:
January 09, 1991
Filing Date:
May 31, 1989
Export Citation:
International Classes:
B23D77/14; B24D7/14; B24D7/18; (IPC1-7): B23D77/14; B24D7/14; B24D7/18
Next Patent: DIGITAL SIGNAL INPUT CIRCUIT