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US Patent: 530,433
Indicator for Steam Engines
Patentee:
Frederick Lane - Brookline, Norfolk County, MA

USPTO Classifications:
200/56R, 346/44, 346/5

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

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

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 01, 1893
Granted: Dec. 04, 1894

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Crosby Steam Gage & Valve Co.

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