Holder for the ends of tubes
United States Patent 2465677
US Patent References:
/0381242.html
- - 0381242

/0718306.html
- - 0718306

Method of forming bellows folds
- - 1823532

Apparatus for forming propeller blades
- - 2047296

Adjustable bulkhead coupling
- - 2359846


Inventors:
Deverall, Charles N.
Publication Date:
03/29/1949
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Assignee:
NIAGARA BLOWER CO
Primary Class:
72/58
Other Classes:
269/20, 403/37, 72/370.030, 403/31, 269/48, 72/316
International Classes:
B21C37/22; B21C37/15
Foreign References:
GB189817085A
IT288511B