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US Patent: 5,170,689
Metal working machine
Patentee:
Jim Dvorak (exact or similar names) - Cosmos, MN

USPTO Classifications:
83/197, 83/200, 83/515, 83/518, 83/599, 83/609, 83/821, 83/859

Tool Categories:
metalworking machines : metal punching machines
metalworking machines : metal shearing machines
metalworking tools : metal punches

Assignees:
None

Manufacturer:
Uni-Hydro Inc. - Cosmos, MN

Witnesses:
Unknown

Patent Dates:
Applied: May 20, 1991
Granted: Dec. 15, 1992

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Uni-Hydro Inc.

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