Quote Originally Posted by Cane Pole View Post
Little credit is given to the true inventor of side scan. It was kept secret by the US Navy. But, the first patent was filed by the German. Kinda like the situation we have today with HB and Lowrance.

Read the Murky Beginnings paragraph. I just searched this cause I was kinda doubting myself for a moment. The rest of the story.......

MIT Museum: Exhibitions - Klein Side Scan Sonar: A World Leader in Ocean Exploration

It's good for all to know the history of inventions.
I think the key phrase for Klein's contribution was "commercial". I didn't pick up on it til you enlightened me on the German feller.