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US Patent: 1,338,176
Extensible Rule
Patentee:
Gustaf L. Finstrom (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:
33/809

Tool Categories:
rules : extensible rules

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Aug. 13, 1917
Granted: Apr. 27, 1920

Patent Pictures:
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