Collar locking device
United States Patent 2051899

Inventors:
Rose, John J.
Publication Date:
08/25/1936
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Assignee:
Rose, John J.
Primary Class:
285/87
Other Classes:
403/320, 411/116, 285/320, 403/342, 411/989
International Classes:
F16B39/10; F16B39/00