Media
1922
Machinery Volume 29, Page 23 “New Type of Adjustable Snap Thread Gage”
1930
P&W Buys John-Sons Gage Works, Hartford Courant
1952
Charles G. Johnson, Founder John-Sons Gage Works
1976
Is there a Screw Loose In U.S. Space Program, The Pittsburgh Press
1976
Voluntary System Challenged, Products-Standards Debate, Long Beach Press
1980
Standards Council Backs Up FTC, Fort Myers Press
2005
Quality Innovations: Thread-View Technology Measures Up, Quality Magazine
2006
Threaded Components, Keep ‘Em Flying, Quality Digest
2006
Hanging by a Thread, Aviation Pros
2009
Quality Scan: Thread Inspection, Your Application Matters, Advanced Manufacturing
2010
Johnson Gage Introduces ``Centrax`` Runout & Concentricity Inspection System, Mfg. News
2013
Changing Slowly, Hartford Courant
2013
Systems 21, 22 and 23 for Fastener Screw Threads, American Fastener Journal
2015
Thread Engineering Software, Quality Magazine
2015