Complex sentence: Cobb also acquired another gunsmith company, Griffin & Howe, and both Von Lengerke & Detmold/Griffin & Howe merchandise were placed in stock in the Madison Avenue store.
Split into simpler sentences: Cobb also acquired another gunsmith company, Griffin & Howe. Both Von Lengerke & Detmold/Griffin & Howe merchandise were placed in stock in the Madison Avenue store.