CA patent 1079182, Nelson Chan, "Cable-cutting device", published 10 June 1980, assigned to Canada Minister of National Defence
FR patent 2935956, Gerald Claeys, "Dispositif sectionneur de cables", published 2 May 1989, assigned to Airbus Helicopters SAS
FR patent 2982844, Marc Denante & Lacroix Pierre Prudhomme, "Dispositif sectionneur de cables, et aeronef", published 14 March 2014, assigned to Airbus Helicopters SAS
faa.gov
tc.faa.gov
Nagaraj, Vengalattore T.; Chopra, Inderjit (September 2018). Safety Study of Wire Strike Devices Installed on Civil and Military Helicopters(PDF) (Report). Air Traffic Organization, Operations Planning Office of Aviation Research and Development, Federal Aviation Administration, United States Department of Transportation. Retrieved 2 April 2020.
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patents.google.com
US patent 4215833, Nelson Chan, "Cable-cutting device", published 5 August 1980, assigned to Canada Minister of National Defence
US patent 4407467, Charles F. Emigh & Morris Goldin, "Tactical wire-cutter system for helicopters", published 4 October 1983, assigned to McDonnell Douglas Helicopter Co
US patent 4826103, James M. McKown, "Active cable-cutting assembly for aircraft", published 2 May 1989, assigned to Custom Air Inc.
US patennt 9725165, Michael Smith; Chen-Ho Tho & Anand Kumar Marimuthu, "Cable cutter system", published 8 August 2017, assigned to Bell Helicopter Textron Inc.
US patent 5286170, William W. Brannon, "Helicopter wire strike cutter", published 15 February 1994
