DD68874A - - Google Patents
Info
- Publication number
- DD68874A DD68874A DD68874DA DD68874A DD 68874 A DD68874 A DD 68874A DD 68874D A DD68874D A DD 68874DA DD 68874 A DD68874 A DD 68874A
- Authority
- DD
- German Democratic Republic
Links
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD68874A true DD68874A (da) |
Family
ID=259845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD68874D DD68874A (da) |
Country Status (1)
| Country | Link |
|---|---|
| DD (1) | DD68874A (da) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3627886A1 (de) * | 1986-08-16 | 1988-02-18 | Oltmanns Filtertechnik Gmbh | Filter fuer ein draenrohr |
| US4780165A (en) * | 1985-09-16 | 1988-10-25 | Corma, Inc. | Method and apparatus for encasing drainage pipes |
-
0
- DD DD68874D patent/DD68874A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780165A (en) * | 1985-09-16 | 1988-10-25 | Corma, Inc. | Method and apparatus for encasing drainage pipes |
| DE3627886A1 (de) * | 1986-08-16 | 1988-02-18 | Oltmanns Filtertechnik Gmbh | Filter fuer ein draenrohr |
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