Niels Christensen

Niels Anton Christensen (16 August 18655 October 1952) was a Danish-American inventor whose principal invention was the O-ring, the ubiquitous hydraulic seal. Provided by Wikipedia
Showing 1 - 2 results of 2 for search 'Niels Christensen', query time: 0.04s Refine Results
  1. 1
  2. 2