Sreekanth

The Delphion Integrated View |
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US2689425 -
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De Veen | ||||||||||||
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1954-09
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043/009.7: FISHING, TRAPPING, AND VERMIN DESTROYING; FISHING; Nets; Trawl; Having specific flow affected board device for holding net mouth open, e.g., an otterboard, etc. 114/245: SHIPS; TOWING OR PUSHING; Submerged object; Having depth-control means 114/246: SHIPS; TOWING OR PUSHING; Steering 367/106: COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES; ECHO SYSTEMS; Distance or direction finding; With towing | ||||||||||||
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1 patent references this one
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