发明名称 WRITING MATERIAL FOR IMPROVING WRITING ABILITY
摘要 <p>The invention relates to a writing material providing improvement of writing skills of an individual beginning to learn writing or incapable of writing due to physical inabilities such as muscle deficiency etc.</p>
申请公布号 EP2356644(A1) 申请公布日期 2011.08.17
申请号 EP20090786153 申请日期 2009.07.15
申请人 SAHIN, SERDAR 发明人 SAHIN, SERDAR
分类号 G09B11/00 主分类号 G09B11/00
代理机构 代理人
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