Rotary crane with split race bull wheel
United States Patent 3250400
US Patent References:
/1117917.html
- - 1117917

Portable crane
- - 2143111

Portable crane
- - 2370661

Rotatable derrick
- - 2374074

Tower crane
- - 3153486


Inventors:
Bennett, Robert F.
Publication Date:
05/10/1966
View Patent Images:
Assignee:
Bennett, Robert F.
Primary Class:
International Classes:
B66C5/10; B66C9/14; B66C23/84; B66C5/00; B66C9/00; B66C23/00
Foreign References:
DE1132309B
GB583895A