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US Patent: 1,620,253
Lubricator
Patentee:
Philetus Warren Gates - Chicago, IL

USPTO Classifications:
184/55.2, 184/76, 184/87

Tool Categories:
industrial tools : lubricators
propulsion and energy : internal combustion engines : lubricators

Assignees:
Hanna Engineering Works - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 27, 1922
Granted: Mar. 08, 1927

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Gates Iron Works
"Vintage Machinery" entry for Hanna Engineering Works
Description:
Improvements to the lubricators of patents 1,211,431, 1,211,432, and 1,195,349.

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