Pipe couplings
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 23, 1986
Grant Date -
N/A
app pub date -
Mar 30, 1983
filing date -
Mar 30, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The pipe coupling is of compression type and comprises a main body having externally threaded portions, a nut and at least one sleeve. The sleeve is formed with a ceramic coating layer on its entire surface.
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