Related terms:
css david
sea research society
bee smoker
inverted microscope
flexible flyer
fast boats
gunnery training ship
swivel chair
torpedo boat destroyer
pipe wrench
dental floss
Wikipedia sources:
Spar torpedo
Torpedo boat
H. L. Hunley (submarine)
Russian ironclad Petr Veliky
Timeline of United States inventions (before 1890)
Context for words:
spar
torpedo
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