1964Clinton Rule invented an improved bilge pump, which flooded the marine market.Economy and Industry, Maritime & Fishing Industry, Technology

Clinton, Rule. Pumps for liquids. US3256828A, issued June 21, 1966. https://patents.google.com/patent/US3256828A/en.
Hover over image to zoom

Rule filed the patent in April of 1964. By 1970, his business, Rule Industries, was big enough to expand into space at the Cape Ann Industrial Park.

Clinton, Rule. Pumps for liquids. US3256828A, issued June 21, 1966. https://patents.google.com/patent/US3256828A/en.
67categories 1576total entries 400+years 845searches
1600165017001750180018501900195020002050