Question: HD-4 or Hydrodome number 4, was an early research hydrofoil watercraft, developed by which scientist, who was a Scottish-born scientist, inventor, engineer, and innovator who is credited with patenting the first practical telephone, and founding the American Telephone and Telegraph Company (AT&T), in 1885?
Sentence (from "HD-4"): It was designed and built at the Bell Boatyard on Bell's Beinn Bhreagh estate near Baddeck, Nova Scotia.
Relevant evidence: No