Title:
Extensible platform
United States Patent 1947647


Inventors:
Holden, John K.
Application Number:
US57679731A
Publication Date:
02/20/1934
Filing Date:
11/23/1931
Assignee:
Holden, John K.
Primary Class:
Other Classes:
52/109, 182/63.1, 182/69.5
International Classes:
B66F3/22; F16M11/38
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