APPARATUS FOR SCIENTIFIC EVALUATION AND ACTIVITY.

摘要

1467906 Recording medium SONY CORP 25 June 1974 [11 July 1973] 21900/76 Divided out of 1467905 Heading G5R The disclosure is substantially identical to that in Specification 1,467,905, but the claims relate to a recording medium comprising at least a first and a second flexibly resilient sheet normally disposed in closely adjacent, confronting relation to one another and being of different sizes so that in said confronting relation at least one edge of one of the first and second sheets projects beyond the adjacent edge of the other of the first and second sheets for ease in separating substantial portions of the first and second sheets from each other, at least the first sheet being adapted to have signal information recorded thereon and reproduced therefrom when said substantial portions of the sheets are separated from each other, the signal information recorded on the first sheet being protected by said other sheet or sheets when all the sheets are in a closely adjacent confronting relation.