8 Utility Patents
#225 in Huntington Beach, CA
#66,592 in California
#254,223 in US
#520,178 in the World
Forward Citations = 365
Company Filing History:
Mcdonnell Douglas Corporation

Johnston Pump/general Valve, Inc.
4. 1 out of 211

5. 1 out of 2
Mcdonnell Douglas Coporation
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