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Screw rotor machines and profiles
US 3,414,189 A
Filed
: 06/22/1966
Issued
: 12/03/1968
Est. Priority Date
: 06/22/1966
Status: Expired due to Term
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16 Citations
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Current Assignee
Persson Jan Edvard
Original Assignee
Persson Jan Edvard
Inventors
PERSSON JAN EDVARD
Application Number
US04/564,469
Time in Patent Office
895 Days
Field of Search
US Class Current
418/201.2
CPC Class Codes
F01C 1/084
Toothed wheels
F01C 1/16
with helical teeth, e.g. ch...
F04C 18/084
Toothed wheels
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