Document Type and Number:
Japanese Patent JPS4728871
Kind Code:
U
Application Number:
JP3284371U
Publication Date:
December 01, 1972
Filing Date:
April 27, 1971
Export Citation:
International Classes:
G03C3/00; B32B27/06; B32B27/18; (IPC1-7): B32B27/06; G03C3/00
Domestic Patent References:
| JPS328383Y1 |