Audio message transfer sheet and manufacturing method...

Details Audio message transfer sheet and manufacturing method... Audio message transfer sheet and manufacturing method...

G - Physics

10

K

G10K 15/04 (2006.01) B42D 15/02 (2006.01) H05K 1/18 (2006.01)

Patent

CA 2621213

Sheet-like audio information recording/reproducing means capable of recording/reproducing audio information is sandwiched between two support sheets from front and back only in part of the area thereof and these two support sheets are further sandwiched between two surface sheets and the support sheets and surface sheets are bonded together.

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