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US Patent: 878,522
Lifting Jack
Patentee:
Frank L. Gormley - Boston, MA

USPTO Classifications:
254/103

Tool Categories:
industrial tools : jack screws

Assignees:
A. O. Norton Inc. - Boston, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 19, 1907
Granted: Feb. 11, 1908

Patent Pictures:
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