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US Patent: 1,142,280
Leaf Separator for Springs
Patentees:
John H. Stevenson - Ann Arbor, MI
Frederick Knowlson - Ann Arbor, MI

USPTO Classifications:
184/14.1, 81/3.7

Tool Categories:
specialty machines : separators

Assignees:
Frederick Knowlson - Ann Arbor, MI

Manufacturer:
Spring Leaf Lubricator Co. - Ann Arbor, MI

Witnesses:
Thomas D. Kearney
Loretto Kahnbach

Patent Dates:
Applied: Feb. 14, 1912
Granted: Jun. 08, 1915

Patent Pictures: [ 1 | 2 | 3 | 4 ]
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