Apparatus for gradually lifting construction parts manufactured on a building yard
United States Patent 3096076
US Patent References:
/0842490.html
- - 0842490
Column or support for rock drills
- - 1450709
Platform construction
- - 2775869
/0842490.html
- - 0842490
Column or support for rock drills
- - 1450709
Platform construction
- - 2775869
Inventors:
Ernst, Walli
Publication Date:
07/02/1963
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Export Citation:
Assignee:
Ernst, Walli
Primary Class:
Other Classes:
52/125.100, 182/141, 182/136, 254/109, 29/429
International Classes:
E04G21/16
Foreign References:
| IT434448B | ||||
| GB761118A | ||||
| GB783915A |