Complex sentence: In 1978 the company was taken over by the Piper Aircraft Corporation, it continued to build three variants (600A, 601B and 600P) and then re-introduced the 601P and 602P (sometimes known as the Sequoya).
Split into simpler sentences: In 1978 the company was taken over by the Piper Aircraft Corporation. It continued to build three variants (600A, 601B and 600P) and then re-introduced the 601P and 602P (sometimes known as the Sequoya).