The Crankless Engines
The Dayton Liquid Meter Company
The Detroit Aircraft Engine Corporation
The Dominion Tygard Engine Manufacturing Co.
The Dreisbach Motors Inc.
The Eclipse Machine Company
The Electrolock Manufacturing Company
The Electromatic System Company
The Energy Research And Development Corporation
The Ferry Cap And Set Screw Company
The Fuel Genie Corporation
The Galloway Engineering Company Limited
The Gas Tool Patents Corporation
The Gile Engine Co.
The Gile Engine Company
The Grimes Motor Company
The H. I. S. Motor Corporation
The Handy Governor Corporation
The Hasler-Stevens Corporation
The Hedges Motor Company