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ELECTRICAL DISCHARGE MACHINING APPARATUS
US 3,517,154 A
Filed
: 09/15/1966
Issued
: 06/23/1970
Est. Priority Date
: 09/15/1966
Status: Expired due to Term
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Current Assignee
August F. Scarpelli
,
John J. Ross
,
Millard A. Ferguson
Original Assignee
August F. Scarpelli
,
John J. Ross
,
Millard A. Ferguson
Inventors
Scarpelli, August F.
,
Ferguson, Millard A.
,
Ross, John J.
Application Number
US04/579,660
Time in Patent Office
1,377 Days
Field of Search
US Class Current
219/69.19
CPC Class Codes
B23H 1/022
for shaping the discharge p...
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