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Patent Searching and Data


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:
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International Classes:
B28B5/02; B28B13/00; B28B15/00; G03C3/00; (IPC1-7): B28B15/00; B28B5/02; B28B13/00
Domestic Patent References:
JPS4815912A
JPS6313707A1988-01-21
JP54041087B
JPS5643821B21981-10-15
JP56080320B