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WATER DEVELOPMENT TECHNOLOGIES, INC.
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Woodland, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Sonic drilling method and apparatus
Patent number
5,417,290
Issue date
May 23, 1995
Water Development Technologies, Inc.
Jeffrey C. Barrow
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74434908 - RESONANTSONIC
Serial number
74434908
Registration number
1893414
Filing date
Sep 13, 1993
WATER DEVELOPMENT TECHNOLOGIES, INC.
42 - Scientific and technological services and research and design relating thereto