|
US4715142A
|
|
Self-destruct fish hook
|
|
US4538249A
|
|
Ultrasonic doppler fish detector
|
|
US4287763A
|
|
Apparatus for concentrating and sampling substances from seawater
|
|
US4188608A
|
|
Fish detection apparatus
|
|
US4085613A
|
|
Thermal energy flowmeter
|
|
US3879697A
|
|
Wide angle fish detector
|
|
US3339417A
|
|
Water sampling apparatus
|
|
US3324451A
|
|
Echo ranging and recording apparatus
|
|
US3339543A
|
|
Pulse interval recording apparatus
|
|
US3225484A
|
|
Aeolian fish lure
|
|
US3246523A
|
|
Pressure rate measuring apparatus
|
|
US3225593A
|
|
Wave measuring apparatus
|
|
US3194057A
|
|
Ultrasonic viscosimeter
|
|
US3226670A
|
|
Apparatus for determining characteristics of the ocean bottom
|
|
US3208286A
|
|
Particle size analyzer
|
|
US3148618A
|
|
Underwater signaling apparatus
|
|
US3136307A
|
|
Vehicle starting system
|
|
US3061185A
|
|
Cash register locking system
|
|
US3093994A
|
|
Recording secure locking system
|
|
US3134254A
|
|
Secure locking system
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