Això és una imatge retocada, cosa que vol dir que ha estat alterada digitalment de la seva versió original. Modificacions: Zwektoryzowano. Modificacions fetes per Krzysztof Zajączkowski Malyszkz.
Llicència
Jo, el titular dels drets d'autor d'aquest treball, el public sota les següents llicències:
Public domainPublic domainfalsefalse
This image was first published in the 1st (1876–1899), 2nd (1904–1926) or 3rd (1923–1937) edition ofNordisk familjebok. The copyrights for that book have expired and this image is in the public domain, because images had no named authors and the book was published more than 70 years ago.
Public domainPublic domainfalsefalse
This image (or other media file) is in the public domain because its copyright has expired and its author is anonymous. This applies to the European Union and those countries with a copyright term of 70 years after the work was made available to the public and the author never disclosed their identity. Important: Always mention where the image comes from, as far as possible, and make sure the author never claimed authorship.
Note: In Germany and possibly other countries, certain anonymous works published before July 1, 1995 are copyrighted until 70 years after the death of the author. See Übergangsrecht. Please use this template only if the author never claimed authorship or their authorship never became public in any other way. If the work is anonymous or pseudonymous (e.g., published only under a corporate or organization's name), use this template for images published more than 70 years ago.For a work made available to the public in the United Kingdom, please use Template:PD-UK-unknown instead.
Public domainPublic domainfalsefalse
Jo, el titular del copyright d'aquesta obra, l'allibero al domini públic. Això s'aplica a tot el món. En alguns països això pot no ser legalment possible, en tal cas: Jo faig concessió a tothom del dret d'usar aquesta obra per a qualsevol propòsit, sense cap condició llevat d'aquelles requerides per la llei.
Podeu seleccionar la llicència que vulgueu.
Registre original de càrregues
This image is a derivative work of the following images:
{{Information |Description={{de|Schema eines 2-Takt Glühkopfmotors<br>1 Glühkopf<br>2 Zylinder<br>3 Kolben<br>4 Kurbelgehäuse}} {{en|Principle of a 2-stroke hot bulb engine}} {{sv|[[:sv:Tändkulemotor|Tän