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Document Type and Number:
Japanese Patent JPH031754
Kind Code:
U
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Application Number:
JP6139489U
Publication Date:
January 09, 1991
Filing Date:
May 27, 1989
Export Citation:
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International Classes:
B24B31/10; B24B31/12; (IPC1-7): B24B31/12; B24B31/10



 
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