Title:
Process and arrangement for production and placing of filling material in hollow building elements
United States Patent 3347136
US Patent References:
Method and machine for making corrugated structures
- - 2475789
Machine for forming structural material
- - 2606133
Hollow panel door structure
- - 2633439
Method of making spirals for hollow panel structures
- - 2697461
Method and machine for making corrugated structures
- - 2475789
Machine for forming structural material
- - 2606133
Hollow panel door structure
- - 2633439
Method of making spirals for hollow panel structures
- - 2697461
Inventors:
Gregers, Kure
Publication Date:
10/17/1967
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Export Citation:
Assignee:
Gregers, Kure
Primary Class:
Other Classes:
493/966, 425/383, 53/520, 493/362, 493/967, 156/197, 493/393
International Classes:
B27D1/06; B31D3/00; B27D1/00
Foreign References:
| BE529027A | ||||
| GB145854A | ||||
| GB843631A |