Document Type and Number:
Japanese Patent JPS4430109
Kind Code:
Y1
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Application Number:
JP8824866U
Publication Date:
December 12, 1969
Filing Date:
September 21, 1966
Export Citation:
International Classes:
G04B37/08; G04B37/00; G04B39/00; (IPC1-7): G04B37/00; G04B39/00