Combined hinge and operating mechanism for window sashes
United States Patent 2112388

Inventors:
Kenneth, Sylvester Harold
Publication Date:
03/29/1938
View Patent Images:
Download PDF 2112388 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Kenneth, Sylvester Harold
Primary Class:
49/337
Other Classes:
16/354
International Classes:
E05F11/14; E05F11/00