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Petrovalve Trademarks
PETROVALVE
valves for pumps and parts therefor
Cancelled
·
February 4, 2015
·
86523765
·
PETROVALVE
bottom-hole pump valves for use in oil and gas industry
Cancelled
·
April 27, 1995
·
74666898
·
PETROVALVE PLUS
bottom-hole pump valves for use in oil and gas industry
Cancelled
·
April 5, 1995
·
74656200
·
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