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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5216989
Kind Code:
B2
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Application Number:
JP432975A
Publication Date:
May 12, 1977
Filing Date:
January 06, 1975
Export Citation:
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International Classes:
F16B4/00; B21D26/02; B21D26/033; B21D26/041; B21D26/047; B21D39/00; B21D39/08