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Patent number:
Patent Date:
US Patent: 868,055
Recording Counter
Patentee:
Frank L. Wolfe (
exact
or
similar
names) - Medford, Middlesex County, MA
USPTO Classifications:
346/113
Tool Categories:
industrial tools
:
rpm speed gauges and tachometers
industrial machines
:
industrial recording apparatus
Assignees:
Crosby Steam Gage & Valve Co.
- Boston, Suffolk County, MA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Dec. 01, 1905
Granted:
Oct. 15, 1907
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Crosby Steam Gage & Valve Co.
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