Window operating device
United States Patent 3362107
US Patent References:
Closure operator
- - 2775446

Closure operator
- - 2977810


Inventors:
Ewing, Thomas R.
Publication Date:
01/09/1968
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Assignee:
TRECO PRODUCTS CO
Primary Class:
49/339
Other Classes:
74/96, 49/394
International Classes:
E05C17/26; E05C17/00
Foreign References:
DE517691C