Keywords: 2 arm 1 spring 1 Tooth wheel.PNG 2 arm 1 spring 1 Tooth wheel Where did this image come from Stef Breukel donated it to wikipedia 2007-04-12 Who created this image Stef Breukel <br><br>Who owns the copyright to this image Stef Breukel did Released into the public domain by the author en wikipedia Stef breukel Original upload log page en wikipedia 2_arm_1_spring_1_Tooth_wheel PNG 2007-04-12 13 06 Stef breukel 1063×605× 27120 bytes <nowiki>Who created this image Stef Breukel Who owns the copyright to this image Stef Breukel Where did this image come from Stef Breukel donated this draw to wikipedia</nowiki> Balanced-arm lamps |