Method and apparatus for producing tubes of vitreous materials
United States Patent 2826869
US Patent References:
/1058250.html
- - 1058250
Machine for casting metals
- - 1377372
Concrete-pipe machine
- - 1562551
Water ring for concrete pipe forms
- - 2108371
Method of feeding molten glass
- - 2121143
/1058250.html
- - 1058250
Machine for casting metals
- - 1377372
Concrete-pipe machine
- - 1562551
Water ring for concrete pipe forms
- - 2108371
Method of feeding molten glass
- - 2121143
Inventors:
Walter, Lerch
Publication Date:
03/18/1958
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Export Citation:
Assignee:
Glasund, Spiegel Manufacture AC.
Primary Class:
Other Classes:
65/304, 425/434, 65/355, 65/207, 425/435, 264/308, 264/311, 65/302
International Classes:
C03B7/16; C03B19/04; C03B7/00; C03B19/00
Foreign References:
| FR634847A | ||||
| GB361090A | ||||
| GB504812A |