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US Patent: 978,446
Rule
Patentee:
Herman Gasstrom (exact or similar names) - New York, NY

USPTO Classifications:
33/80

Tool Categories:
rules : extensible rules

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 22, 1909
Granted: Dec. 13, 1910

Patent Pictures:
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