首页>
外国专利>
toy structure scatolare closed at the ends by a pair of filters polarizzatori, between which is interposed an x-ray transparent anisotropic material.able to produce changeable and colorful light effects.
toy structure scatolare closed at the ends by a pair of filters polarizzatori, between which is interposed an x-ray transparent anisotropic material.able to produce changeable and colorful light effects.