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DOOR OPERATING MECHANISMS
US 3,533,188 A
Filed
: 10/22/1968
Issued
: 10/13/1970
Est. Priority Date
: 10/23/1967
Status: Expired due to Term
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Current Assignee
Griffith John Tudor
,
Jones Peter Leslie
Original Assignee
Griffith John Tudor
,
Jones Peter Leslie
Inventors
JONES PETER LESLIE
,
GRIFFITH JOHN TUDOR
Application Number
US04/769,496
Time in Patent Office
721 Days
Field of Search
US Class Current
49/360
CPC Class Codes
E05F 15/60
using electrical actuators
E05Y 2900/51
for railway cars or mass tr...
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