David Brown No. 7 Hydrax Gear Hobber Manual
David Brown No.7 Hydrax Gear Hobber. Operating Manual.
David Brown 7 (High Production) Manual
David Brown No.7 High Production Gear Hobbing Machine. Operating Manual.
David Brown No.7 Hydrax Gear Hobber. Operating Manual.
David Brown No.7 High Production Gear Hobbing Machine. Operating Manual.