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DK667C
(en)
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Collision Buffer to Prevent Ship Collisions by Automatic Rearrangement of the Rudder.
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DK440C
(en)
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Ship propeller.
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GB189607710A
(en)
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Construction of Submarine Bridges.
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FR397370A
(en)
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Boat propulsion system by swivel pallets
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ES32150A1
(en)
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Propulsion system for bicycles, light carriages, called "Masachs Propeller".
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DK1369C
(en)
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Submarine Vessel.
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FR352855A
(en)
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Propeller propeller for ships
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CH28464A
(en)
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Boat thruster
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FR330043A
(en)
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Ship thruster
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FR351253A
(en)
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Propulsion mechanism for boats
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FR362466A
(en)
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Propeller propeller for boats, torpedoes and other applications
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ES19664A1
(en)
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Improvements made to cork stopper machines.
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ES20249A1
(en)
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An industrial procedure to obtain sodas from Torrente.
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FR331851A
(en)
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Propeller
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FR343842A
(en)
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Ship propeller
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ES18620A1
(en)
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Submarine ship improvements.
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FR378053A
(en)
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Ship propulsion system
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FR378815A
(en)
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Ship propulsion system
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FR343197A
(en)
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Improvements made to thrusters for ships or other craft
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ES19845A1
(en)
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Typewriter improvements.
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ES19223A1
(en)
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Typewriter improvements.
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FR365156A
(en)
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Boat rudder
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DK1245C
(en)
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Rudder screw for propulsion of smaller vessels by hand power.
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FR379850A
(en)
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Unsinkable boat system
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CH12359A
(en)
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Advanced propeller
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