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US Patent: 3,531,615
Electrical discharge machining with step driven electrode
Patentee:
Frank X. Zammit (exact or similar names) - West Bloomfield, MI

USPTO Classifications:
118/665, 118/688, 219/69.16, 314/65, 318/650, 318/685

Tool Categories:
metalworking machines : electrical discharge machining

Assignees:
F. Joseph Lamb Co. - Detroit, MI

Manufacturer:
F. Joseph Lamb Co. - Detroit, MI

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 08, 1966
Granted: Sep. 29, 1970

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for F. Joseph Lamb Co.

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