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From October 1923 Railway Mechanical Engineer |
Argyle Railway Supply Co. and Titan Manufacturing Co., both of Chicago, manufactured Titan portable electric drills.
Information Sources
- Old eBay sale for a Titan drill on WorthPoint. The drill appears to be 1920s to 1930s. Another listing on the site is for an Argyle Titan drill, but the photos are blurred.
- Railway Journal, Vol. 29, No. 10, Oct. 1923. Pg. 33.