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US Patent: 407,466
Roofing Double Seaming Machine
Patentee:
Samuel Y. Buckman - Philadelphia, PA

USPTO Classifications:
81/300

Tool Categories:
metalworking machines : sheet metal

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: May 15, 1889
Granted: Jul. 23, 1889

Patent Pictures:
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