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DYNAMOELECTRIC DEVICE WITH SPEED CHANGE MECHANISM
US 3,477,315 A
Filed
: 12/18/1967
Issued
: 11/11/1969
Est. Priority Date
: 12/18/1967
Status: Expired due to Term
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Current Assignee
Macks Elmer Fred
Original Assignee
Macks Elmer Fred
Inventors
MACKS ELMER FRED
Application Number
US04/691,590
Time in Patent Office
694 Days
Field of Search
US Class Current
475/149
CPC Class Codes
F16H 13/08
with balls or with rollers ...
H02K 7/003
Couplings; Details of shaft...
H02K 7/083
radially supporting the rot...
H02K 7/116
with gears
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