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US Patent: 426,439
Machine for Corrugating Tubing
Patentee:
John F. Fife (exact or similar names) - Medford, Middlesex County, MA

USPTO Classifications:
72/105, 72/95

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: Jul. 22, 1889
Granted: Apr. 29, 1890

Patent Pictures:
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