Idiograph

Id'i·o·graph (ĭd'ĭ*o*grȧf) noun [ Greek ... autographic; 'i`dios one's own + gra`fein to write.] A mark or signature peculiar to an individual; a trade-mark.
Found on http://www.encyclo.co.uk/webster/I/4

Idiograph

• (n.) A mark or signature peculiar to an individual; a trade-mark.
Found on http://thinkexist.com/dictionary/meaning/idiograph/

idiograph

idiograph 1. One`s private mark or signature. 2. A signature or mark characteristic of or peculiar to a particular person, organization, etc. 3. A logotype or trademark.
Found on http://www.wordinfo.info/words/index/info/view_unit/2724/37

idiograph

private mark; trademark
Found on http://phrontistery.info/i.html
No exact match found