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Maurice Slegers
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Lakewood, CA, US
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last 30 patents
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Patent Grant
Pig ball transfer unit
Patent number
4,199,834
Issue date
Apr 29, 1980
Willis Oil Tool Co.
John D. Muchow
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Patent Grant
Device and method for launching and/or retrieving pipeline scrapers
Patent number
4,016,621
Issue date
Apr 12, 1977
Willis Oil Tool Co.
Maurice Slegers
B08 - CLEANING