Document Type and Number:
Japanese Patent JPH0326511
Kind Code:
U
Application Number:
JP8840189U
Publication Date:
March 18, 1991
Filing Date:
July 27, 1989
Export Citation:
International Classes:
B28B5/02; B28B13/00; B28B15/00; G03C3/00; (IPC1-7): B28B15/00; B28B5/02; B28B13/00
Domestic Patent References:
JPS4815912A | ||||
JPS6313707A | 1988-01-21 | |||
JP54041087B | ||||
JPS5643821B2 | 1981-10-15 | |||
JP56080320B |