Document Type and Number:
Japanese Patent JPS4522650
Kind Code:
Y1
More Like This:
WO/2012/156090 | PEN |
JP2024023833 | thermochromic writing instruments |
Application Number:
JP5199266U
Publication Date:
September 08, 1970
Filing Date:
June 02, 1966
Export Citation:
International Classes:
(IPC1-7): B43K5/16