Title:
Key
United States Patent 2287454
Inventors:
Scharnberg, Marie M.
Publication Date:
06/23/1942
Export Citation:
Click for automatic bibliography generation
Assignee:
Marie, Scharnberg M.
Primary Class:
403/292
Other Classes:
403/358
International Classes:
E04B1/61; F16B5/00; E04B1/61; F16B5/00
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