John Kelso
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![](/mediawiki/images/thumb/7/79/JohnKelso_AAR50TonBrakes.jpg/300px-JohnKelso_AAR50TonBrakes.jpg)
John Kelso's AAR 50 ton truck brake rigging.
John Kelso manufactures and sells the following components:
- 6ET Air Brake Valve
- Friction Draft Gear
- Operating Glad Hands
- 50 ton AAR Trucks (1940 style)
- Brake Rigging for AAR Trucks
- Signs