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Transportation & Automotive
Class Information
Number:
114/55
Name:
Ships
>
Vessel raising and docking
>
Submerged
> Sand and mud loosening
Description:
Devices or means for removing the sand or mud about a submerged hull.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
7413379
Boat storage stand
Aug. 19, 2008
6471558
Ventilation system for watercraft
Oct. 29, 2002
4957392
Method and apparatus for the active prevention of sedimentation in harbors and waterways
Sep. 18, 1990
4448569
Lift sling emplacement device
May. 15, 1984
4150503
Apparatus for excavation and earth removal from aquatic bottoms
Apr. 24, 1979
4073079
Device for pumping out sanded in crab pots
Feb. 14, 1978
4051797
Steel boat hull salvaging assembly
Oct. 4, 1977
3986745
Grabber
Oct. 19, 1976
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