en.wikipedia.org/wiki/Sikorsky_Aircraft

The Sikorsky Aircraft Corporation is an American aircraft manufacturer based in Stratford, ... In late 2005, Sikorsky completed the purchase of Keystone Helicopter Corporation, located in Coatesville, Pennsylvania. Keystone had been ...

www.rotorandwing.com/2010/01/01/sikorsky-global-helicopterskeystone-helicopter

Jan 1, 2010 ... During the past 50 years, Keystone Helicopter has gained a ... In late 2005, Keystone was purchased by Sikorsky Aircraft Corporation—its ...

www.rotorandwing.com/2009/01/01/keystone-helicopter-3

Jan 1, 2009 ... During the past 50 years, Keystone Helicopter has gained a ... In late 2005, Keystone was purchased by Sikorsky Aircraft Corporation. During ...

www.bloomberg.com/research/stocks/private/snapshot.asp?privcapId=1501662

Keystone Helicopter Corporation company research & investing information. Find executives and the latest company news.

www.linkedin.com/company/keystone-helicopter

Learn about working at Keystone Helicopter. Join LinkedIn today for free. See who you know at Keystone Helicopter, leverage your professional network, and ...

www.aviationpros.com/engines-components/aircraft-airframe-accessories/structural/company/10134519/keystone-helicopter-corp

Keystone Helicopter Corp. Tweet. Share. 1420 Phoenixville Pike. West Chester. PA. 19380. United States. 800-633-1555. 610-644-7681.

www.sikorsky.com

www.businesswire.com/news/home/20050708005407/en/Keystone-Helicopter-Breaks-Ground-Phase-Huge-Rotorcraft

Jul 8, 2005 ... Keystone Helicopter Corporation is an FAA and European Aviation Safety Authority (EASA) licensed rotorcraft repair station that has grown in 5 ...

www.merionpartners.com/2005/12/15/sikorsky-completes-keystone-acquisition

Dec 15, 2005 ... It will continue to operate under the brand names of its subsidiaries, Keystone Helicopter Corporation and Composite Technology U.S.A., Inc.