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US Patent: 1,843,068
Valve
Patentees:
Adolf Von Wangenheim (exact or similar names) - Detroit, Wayne County, MI
Ragnar Gradhe (exact or similar names) - Detroit, Wayne County, MI

USPTO Classifications:
137/507, 137/510, 184/76, 92/103M, 92/99

Tool Categories:
industrial tools : industrial valves
hardware : valves
industrial machines : industrial machine mechanisms : industrial machine lubrication

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

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 08, 1927
Granted: Jan. 26, 1932

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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