Process for flattening the end section of a tube
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United States of America Patent
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-
Aug 2, 1994
Grant Date -
N/A
app pub date -
Feb 24, 1993
filing date -
Feb 24, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process for flattening the end sections of a tube. The end section is given a preparatory treatment such that two recesses or notches lying opposite one another are made in the tube wall. The tube wall is then pressed together so that the fold lines run through the recesses.
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Cited Art Landscape
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