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GB Patent: GB-190,311,147
Improvements in Change Speed Gear.
Patentees: Alfred Soames (exact or similar names) - Surrey, England Walter Langdon-Davies (exact or similar names) - Surrey, England USPTO Classifications: Tool Categories: industrial machines : industrial machine mechanisms : industrial machine speed and direction changing mechanisms Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 15, 1903 Granted: May 05, 1904 Patent Pictures: Espacenet patent Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Langdon-Davies Electric Motor Co.

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