موهوبون | موقع المخترعين والمبتكرين العرب أول موقع عربي يعني بنشر وتسويق الإختراعات العربية – موهوبون
THE NEW STRETCHER FRAME FOR CANVAS OIL PAINTINGS IS MADE OF PLEXIGLASS, WHICH IS A TRANSPARENT MATERIAL. THIS FRAME CONSISTS OF FOUR SIDES WITH BEVELED INNER EDGES AND MITERED CORNERS WITH SLOT AND TENON JOINTS THAT CAN BE EXPANDED BY USING A CONTROL UNIT CONTAINING EIGHT COGWHEELS. THE SIDES CAN BE MOVED EASILY BY TURNING THE COGWHEELS, WHICH AIDS THE …
أكمل القراءة »NEW STRETCHER FRAME TO PREVENT THE LOOSENING OF OIL PAINTINGS AND AVOID THE DEFECTS OF TRADITIONAL STRETCHER FRAME
