1959 ⎘
Drawn nets; Trawling nets; Devices for spreading or positioning, e.g. control thereof for lateral sheering, e.g. trawl boards
SPREADING DEVICE
#2TRAWL NET SYSTEM AND SEGMENT
#3TRAWL DOOR WITH MOVEABLE HYDROFOIL SECTIONS
#4TRAWL DOOR WITH LIFT ADJUSTING MEANS
#5MULTI-KITE APPARATUS FOR USE WITH BOTTOM TRAWLS
#6TRAWL DOOR
#7Arrangement for attaching a towing line to a spreading device
#8TRAWL DOOR WITH ADJUSTMENT MEANS
#9Bridle block for a deflector
#10Airfoil shaped trawl door
#11RIGGING CONFIGURATION FOR A COMMERCIAL FISHING TRAWL
#12Paravane for a Floating Barrier
#13Otter board
#14Method for determining distance between underwater acoustic devices
#15Trawl door or paravane with remote control adjustment
#16System and method of controlling force developed by a paravane system
#17HIGH EFFICIENCY, HIGH STABILITY, MULTI-ELEVATION TRAWL DOOR AND METHODS
#18High-lift otter board
#19HIGH STABILITY, HIGH EFFICIENCY TRAWL DOOR AND METHODS
#20PERFORATED SLAT TRAWL DOOR
#21High Speed, Increased Hydrodynamic Efficiency, Light-Weight Molded Trawl Door and Methods for Use and Manufacture
#22Higher Efficiency Pelagic Trawl Door Construction Employing Universally Available Materials and Method
#23Self-spreading trawls having a high aspect ratio mouth opening