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US Patent: 374,493
Template for use in gaining stair-stringers
Patentee:
William H. Parry (exact or similar names) - New York, NY

USPTO Classifications:
144/136.6, 144/144.51

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Dec. 06, 1887

Patent Pictures:
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