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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5230910
Kind Code:
Y2
Application Number:
JP7944272U
Publication Date:
July 14, 1977
Filing Date:
July 05, 1972
Export Citation:
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International Classes:
G03B1/12; B65H23/198; G03B1/00; G03B21/11; G03B21/14; G03B23/00; G03B23/12; H02P3/08; H02P7/06; (IPC1-7): G03B23/00; G03B21/11; H02P3/08