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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0311434
Kind Code:
Y2
Application Number:
JP6220586U
Publication Date:
March 19, 1991
Filing Date:
April 24, 1986
Export Citation:
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International Classes:
F04B43/04; F04B45/04; F04B45/047; (IPC1-7): F04B45/04