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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5636720
Kind Code:
Y2
Application Number:
JP4020477U
Publication Date:
August 28, 1981
Filing Date:
March 31, 1977
Export Citation:
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International Classes:
B64C31/02; B64C31/028; B64C31/06; (IPC1-7): B64C31/02