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US 2,852,767 A
Filed
: 06/11/1953
Issued
: 09/16/1958
Est. Priority Date
: 06/11/1953
Status: Expired due to Term
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Petitions
2
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2 Citations
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Current Assignee
Fisher, John E.
,
Foller James A C
Original Assignee
Fisher, John E.
,
Foller James A C
Inventors
FOLLER JAMES A C
,
Fisher, John E.
Application Number
US03/360,942
Time in Patent Office
1,923 Days
Field of Search
US Class Current
340/317
CPC Class Codes
H04M 3/4872
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