First and second members spaced from each other are hermetically sealed by fused insulating materials. The insulating materials are partially amorphous and partially crystalline. The insulating materials have substantially identical characteristics. However, a first one of the insulating materials is...http://www.google.es/patents/US4514207?utm_source=gb-gplus-sharePatente US4514207 - Method for making terminal assembly for heart pacemaker
Method for making terminal assembly for heart pacemaker