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US 3,396,782 A
Filed
: 02/15/1967
Issued
: 08/13/1968
Est. Priority Date
: 02/15/1967
Status: Expired due to Term
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Current Assignee
Emery I. Valyi
Original Assignee
Emery I. Valyi
Inventors
Valyi, Emery I.
Application Number
US04/616,361
Time in Patent Office
545 Days
Field of Search
US Class Current
165/110
CPC Class Codes
B22F 7/002
of porous nature
F28F 13/003
by using permeable mass, pe...
F28F 3/14
by separating portions of a...
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