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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH02107776
Kind Code:
U
Application Number:
JP1657689U
Publication Date:
August 28, 1990
Filing Date:
February 15, 1989
Export Citation:
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International Classes:
F04B41/02; F04B45/04; (IPC1-7): F04B41/02; F04B45/04
Domestic Patent References:
JPS62169510A1987-07-25
JPS5062787A1975-05-28
JPS61236208A1986-10-21
JP60075691B



 
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