Rough abrasive like material
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United States of America Patent
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-
Jul 11, 1989
Issued Date -
N/A
app pub date -
Aug 23, 1988
filing date -
Feb 22, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Rough product constituted of a film of plastic material, such as a mono-drawn polyester film, presenting perforations of which the outlines form craters raised with respect to the surface of the film. This product may be obtained according to the needling technique.
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Cited Art Landscape
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