Textured surface for test sample cards
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United States of America Patent
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Jul 31, 2001
Grant Date -
N/A
app pub date -
Sep 16, 1997
filing date -
Sep 16, 1997
priority date (Note) -
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Abstract
A test sample card is produced from a mold machined in accordance with an electronic discharge machining (EDM) process, with a resulting finely textured surface of the mold left intact. The mold produces a test sample card that has an even finely textured surface which improves the adhesion of a membrane to the card surface. The card is better able to withstand prolonged incubation periods without separation of the adhesive membrane from the card surface, as compared to prior art cards.
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