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Patent Searching and Data

Document Type and Number:
Japanese Patent JPS57139506
Kind Code:
Application Number:
Publication Date:
September 01, 1982
Filing Date:
February 26, 1981
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International Classes:
E02D27/00; E02D27/01; E04B1/41; E04G9/00; E04G17/06; (IPC1-7): E04B1/41; E02D27/01; E04G9/00

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