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Home › Record carrier having first variations of a first physical parameter corresponding to information recorded thereon and second variations of a second physical parameter relating to recovery of the information

Record carrier having first variations of a first physical parameter corresponding to information recorded thereon and second variations of a second physical parameter relating to recovery of the information

US Patent 5724327 · Granted Mar 3, 1998

Estimated economic value: $52,295,000 ⓘ

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