39,764
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Patent US 4647862A: Difference between revisions
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|Filing date=1984-09-04 | |Filing date=1984-09-04 | ||
|Grant date=1987-03-03 | |Grant date=1987-03-03 | ||
|Links=TDS3012;TDS3012B;TDS3014;TDS3032;TDS3034;TDS3052;TDS3054;TDS3054B;TDS3054C | |||
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