U.S. federal trademark · Serial No. 73659197 · Reg. No. 1469689
APPARATUS COMPRISING A NON-MAGNETICALLY RECORDED TAPE IN THE FORM OF A GROOVED PLASTIC STRIP AND A SOUNDING BOARD FOR THE PRODUCTION OF SOUND UPON SEQUENTIAL ENGAGEMENT OF THE RECORDED GROOVES BY A FINGERNAIL, NEEDLE, WIRE OR OTHER SUITABLE TOOL
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