Document Type and Number:
Japanese Patent JPH0143539
Kind Code:
Y2
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Application Number:
JP18369381U
Publication Date:
December 18, 1989
Filing Date:
December 11, 1981
Export Citation:
International Classes:
F16D3/20; F16D3/22; F28F7/00; (IPC1-7): F16D3/21; F28F7/00
Next Patent: JPH0143540