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Safety lock for window sashes
US 2,532,881 A
Filed
: 12/23/1946
Issued
: 12/05/1950
Est. Priority Date
: 12/23/1946
Status: Expired due to Term
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3
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3 Citations
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Current Assignee
Emmett A. Barnes
Original Assignee
Emmett A. Barnes
Inventors
Barnes, Emmett A.
Application Number
US02/718,007
Time in Patent Office
1,443 Days
Field of Search
US Class Current
292/63
CPC Class Codes
E05F 11/00
Man-operated mechanisms for...
E05Y 2900/148
Windows
Y10S 292/20
Window fasteners
Y10T 292/0886
Sliding and swinging
Y10T 292/1043
Swinging
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