Wikimedi'Òc

Дмитрий Иванович Менделеев 7.jpg - Materialscientist

Hjalmar Lundbohm signature.png - Lapplänning

Chandsig.jpg - CUArchivist

Mendelejew signature.jpg - Kamil9243

Naboitchenko sign.png - Const st

John Dalton Signature c1827.svg - Scewing

Hans Christian Ørsted signature.svg - Scewing

Ingold podp.jpg - Kikkake

Albert Szent-Györgyi signature.svg - Scewing

Signature of Siyavush Garayev.jpg - Interfase

Davy's signature.png - Никита Воробьев

Firma di Giuseppe Gazzeri.tif - Elidire

Charles Lathrop Parsons signature.jpg - Mary Mark Ockerbloom

NileRed signature.svg - Dwarfroe

J. H. van 't Hoff - handtekening - signature.jpg - Hansmuller

Handtekening Ernst A. Hauser.jpg - Arie m den toom

Solvay1933Signature Gamow.jpg - Jochen Burghardt

Solvay1933Signature Henriot.jpg - Jochen Burghardt

Solvay1933Signature Herzen.jpg - Jochen Burghardt

Solvay1933Signature JoliotCurieI.jpg - Jochen Burghardt

1943 Bach.jpg - Jochen Burghardt

1943 Bajkow.jpg - Jochen Burghardt

1943 Fersman.jpg - Jochen Burghardt

1943 Brizke.jpg - Jochen Burghardt

Ulf Lagerkvist signature.svg - Sinigh

Paul Casamajor signature.png - Ysh.cabana

NileRed sig.png - Dwarfroe

Signature of Clair Cameron Patterson (1922–1995).png - Nick Number

Adrien Albert signature.jpg - Sgroey