X-Nico

unusual facts about Harold R. Atteridge


Harold R. Atteridge

Producer George Lederer showed enthusiasm and advised Atteridge to move to New York.


Berliner Helicopter

There it was flown by Air Service test pilot Harold R. Harris among others, achieving stable hovers of up to 15 feet.

Duoplasmatron

Later development by Harold R. Kaufman resulted in the Kaufman Duoplasmatron which has been used for applications as diverse as semiconductor manufacture, and spacecraft propulsion.

Electrostatic ion thruster

and developed in practical form by Harold R. Kaufman at NASA Lewis (now Glenn) Research Center from 1957 to the early 1960s.

Harold R. W. Benjamin

Harold Raymond Wayne Benjamin was born March 27, 1893 in Gilmanton, Wisconsin to Harold and Harriet Benjamin.


see also