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Document Type and Number:
Japanese Patent JPS4522650
Kind Code:
Y1
More Like This:
WO/2012/156090PEN
JP2024023833thermochromic writing instruments
Application Number:
JP5199266U
Publication Date:
September 08, 1970
Filing Date:
June 02, 1966
Export Citation:
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International Classes:
(IPC1-7): B43K5/16



 
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