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Patent Searching and Data

Document Type and Number:
Japanese Patent JPS6140949
Kind Code:
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Publication Date:
November 21, 1986
Filing Date:
October 23, 1978
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International Classes:
F04B39/10; F04B25/04; F04B27/08; F04B53/10; F16K15/16; (IPC1-7): F04B25/04; F04B39/10; F16K15/16