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US Patent: 636,907
Whistle Valve
Patentee:
Frederick Lane (exact or similar names) - Boston, Middlesex County, MA

USPTO Classifications:
116/137R, 137/551, 251/25

Tool Categories:
specialty tools : whistles

Assignees:
Crosby Steam Gage & Valve Co - Boston, Middlesex County, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 27, 1898
Granted: Nov. 14, 1899

Patent Pictures:
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