Star Wars Darth Vader musical birthday card

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  • Description
Date Introduced
Richards, Mark
Photographer
overall: 1/8 in x 6 1/4 in x 5 1/2 in
Dimensions
Hallmark Cards Inc.
Copyright Owner
© Mark Richards
Object ID
500003071p

CMOS technology made it possible for tiny button batteries to power the sound-recording chips originally developed for telephone answering machines.