Hal Bierman (Person)
Hal Bierman was a model maker and designer for Estes from 2004 to 2007. Beirman built sales samples, photo models, and test prototypes. He designed and developed the Pop-Fly, Porta-Pot-Shot, and Rock-It model rocket kits.
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Hal Bierman was a model maker and designer for Estes from 2004 to 2007. Beirman built sales samples, photo models, and test prototypes. He designed and developed the Pop-Fly, Porta-Pot-Shot, and Rock-It model rocket kits.
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