Document Type and Number:
Japanese Patent JPS4860602
Kind Code:
U
Application Number:
JP10510671U
Publication Date:
August 02, 1973
Filing Date:
November 12, 1971
Export Citation:
International Classes:
G03B27/06; G03F7/22; G03F9/00; (IPC1-7): G03F7/20; G03B27/04