Below you can find the By the end of the 17th century the english upper crust were using the 3-prong type of these Jeopardy Words Answer. The answer to By the end of the 17th century the english upper crust were using the 3-prong type of these has 5 letters. This clue belongs to the Technology category and is part of Jeopardy Word Level 612. If you scroll near the bottom you will find other clues and answers part of level 612