Apparatus for grinding the internal walls of pipes
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United States of America Patent
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-
May 4, 1982
Grant Date -
N/A
app pub date -
Jun 23, 1980
filing date -
Jun 23, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A grinder is supported within a pipe, the support being arranged to adjust the movement of the head of the grinder radially and axially of the pipe axis to bear against internal cracks in the pipe wall.
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