Double-acting door hinge
United States Patent 1655043

Inventors:
Blackwell, Daniel W.
Publication Date:
01/03/1928
View Patent Images:
Download PDF 1655043 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Blackwell, Daniel W.
Primary Class:
16/284
Other Classes:
49/237
International Classes:
E05F1/12; E05F1/06; E05F1/00