(under subclass 60) Processes including a step of imparting a rapid oscillation or to and fro movement to at least one of the laminae or adhesive at a rate of less than 10 cycles per second either prior to, during or after the formation of a sandwich.
(1) Note. The vibration may be effected for any purpose including the spreading of particulate material, elimination of air pockets in the adhesive, etc.
