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Method for producing roller embossed warp-resistant fiberboard
US 3,325,302 A
Filed
: 06/14/1963
Issued
: 06/13/1967
Est. Priority Date
: 06/14/1963
Status: Expired due to Term
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Current Assignee
Lewis K. Hosfeld
Original Assignee
Lewis K. Hosfeld
Inventors
Hosfeld, Lewis K.
Application Number
US04/287,996
Time in Patent Office
1,460 Days
Field of Search
US Class Current
427/211
CPC Class Codes
B41F 19/02
with embossing
D21J 1/00
Fibreboard preparation of p...
D21J 1/08
Impregnated or coated fibre...
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