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US Patent: 471,348
Pipe Hanger
Patentee:
John Collis (exact or similar names) - Des Moines, Polk County, IA

USPTO Classifications:
119/531, 248/55, 248/62, 248/72

Tool Categories:
hardware : pipe hangers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 15, 1891
Granted: Mar. 22, 1892

Patent Pictures:
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