(under subclass 249) Process wherein the work parts comprise
a pair of superposed sheet-like members of generally the same surface area which are secured together by fusion bonding, one directly on top of the other and wherein the meeting faces comprise virtually all of the upper surface of the first sheet and virtually all of the lower surface of the second sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
190, for a similar operation wherein at least three superposed sheets are simultaneously secured by fusion bonding.