The Importance of Supersonic Transport: A Letter from Tom Dolan Heating Co., Inc.1964-06-05unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_038_8_47_5_0031Two letters from Tom Dolan Heating Co. and General Electric expressing support for the supersonic transport tests being conducted in Oklahoma City despite opposition from some residents. They believe the tests are important for economic growth and national defense.