The Trottermatic Compound bow was manufactured in the early 1970's through the mid 1980's.
US Patent Number 3,923,035 Compound bow December 2, 1975
US Patent Number 4,061,125 Bowstring positioning device December 6, 1977
US Patent Number 4,071,014 Arrow positioning device January 31, 1978
Louisiana Tech University "Tech Talk" newspaper advertisement. December 1976
Mark Trotter with Trottermatic Compound Bow 1977
Mark Trotter with Trottermatic Compound Bow 1977
Fred Bear signing a Trottermatic bow in Jackson MS, August 15, 1980
Mark Trotter with Trottermatic Compound Bow, March 1989
George H. Trotter with Trottermatic Compound Bow August 4, 1981
Louisiana Tech University "Tech Talk" newspaper. December 1976
The Trottermatic Compound Bow was invented and developed by George Trotter in the early 1970's.
Gloria and George Trotter - June 24, 1989
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Louisiana Tech University - Tech Talk article - 1976