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Magnetic chuck face plate
US 2,771,571 A
Filed
: 04/08/1952
Issued
: 11/20/1956
Est. Priority Date
: 04/08/1952
Status: Expired due to Term
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Current Assignee
Einar B. Hallberg
,
George J. Carson
Original Assignee
Einar B. Hallberg
,
George J. Carson
Inventors
Carson, George J.
,
Hallberg, Einar B.
Application Number
US03/281,202
Time in Patent Office
1,687 Days
Field of Search
US Class Current
335/285
CPC Class Codes
B23Q 3/154
Stationary devices
Y10T 279/23
with magnetic or electrosta...
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