Search results 8 - 9 of 9 for the tag Submarine

  • Underwater patent

    Underwater patent

    Inventor John P. Holland submitted this drawing of a submarine boat to the United States Patent Office in support of his application for a patent. Holland received a...


  • Unterseeboot

    Unterseeboot

    During World War I, Germany used Unterseeboots, or U-boats, to sink enemy ships, including civilian merchant ships transporting supplies — and possibly weapons. The...

Search results 8 - 9 of 9 for the tag Submarine