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US Patent: 432,232
Machine for Corrugating Wrought Metal Tubing
Patentee:
John F. Fife (exact or similar names) - Medford, Middlesex County, MA

USPTO Classifications:
72/100

Tool Categories:
specialty machines : tube corrugating machines

Assignees:
Wainwright Mfg. Co. - Boston, Suffolk County, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 01, 1889
Granted: Jul. 15, 1890

Patent Pictures:
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