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Document Type and Number:
Japanese Patent JPS5217590
Kind Code:
Y2
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Application Number:
JP10211071U
Publication Date:
April 20, 1977
Filing Date:
October 30, 1971
Export Citation:
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International Classes:
D06F71/00; D06F69/02; D06F71/20; D06F71/32; (IPC1-7): D06F69/02



 
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