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US Patent: 2,208,181
Vacuum Air Valve
Patentee:
Lewis W. Eggleston (exact or similar names) - Detroit, Wayne County, MI

USPTO Classifications:
137/198, 236/61

Tool Categories:
hardware : valves

Assignees:
Detroit Lubricator Co. - Detroit, Wayne County, MI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 20, 1936
Granted: Jul. 16, 1940

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Detroit Lubricator Co.

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