Michael C. Frengley

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Chandler, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a leading edge weight retention assembly for a hel...
- Patent number 5,621,967
- Issue date Apr 22, 1997
- McDonnell Douglas Helicopter Co.
- Michael C. Frengley
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Leading edge weight retention assembly for a helicopter rotor
- Patent number 5,462,409
- Issue date Oct 31, 1995
- McDonnell Douglas Helicopter Co.
- Michael C. Frengley
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL