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Door operator
US 2,851,266 A
Filed
: 07/13/1956
Issued
: 09/09/1958
Est. Priority Date
: 07/13/1956
Status: Expired due to Term
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5
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Current Assignee
William Klamp
Original Assignee
William Klamp
Inventors
WILLIAM KLAMP
Application Number
US03/597,617
Time in Patent Office
788 Days
Field of Search
US Class Current
160/189
CPC Class Codes
E05F 15/684
by chains
E05Y 2201/646
continuous, e.g. closed loops
E05Y 2201/686
Rods, links
E05Y 2800/00
Details, accessories and au...
E05Y 2900/106
for garages
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