Document Type and Number:
Japanese Patent JPH0230209
Kind Code:
Y2
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Application Number:
JP6571485U
Publication Date:
August 14, 1990
Filing Date:
May 01, 1985
Export Citation:
International Classes:
B24B31/02; B24B31/10; B24B31/12; (IPC1-7): B24B31/02; B24B31/12
Next Patent: JPH0230210