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US Patent: 471,171
Steam Whistle
Patentee:
Henry R. Frisbie (exact or similar names) - Bridgeport, Fairfield County, CT

USPTO Classifications:
116/141

Tool Categories:
propulsion and energy : steam apparatus : steam whistles

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Nov. 11, 1891
Granted: Mar. 22, 1892

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