PL88468B1 - - Google Patents
Info
- Publication number
- PL88468B1 PL88468B1 PL13265769A PL13265769A PL88468B1 PL 88468 B1 PL88468 B1 PL 88468B1 PL 13265769 A PL13265769 A PL 13265769A PL 13265769 A PL13265769 A PL 13265769A PL 88468 B1 PL88468 B1 PL 88468B1
- Authority
- PL
- Poland
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
- B29C53/587—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features having a non-uniform wall-structure, e.g. with inserts, perforations, locally concentrated reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/737—Articles provided with holes, e.g. grids, sieves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Filtering Materials (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL13265769A PL88468B1 (ro) | 1969-03-29 | 1969-03-29 | |
| DE19702014796 DE2014796B2 (de) | 1969-03-29 | 1970-03-26 | Verfahren und Vorrichtung zur Herstellung von perforierten Kunststoffröhren |
| FR7011192A FR2040097A5 (en) | 1969-03-29 | 1970-03-27 | Perforated, resin-impregnated fibre tube - production |
| RO6293570A RO61925A (fr) | 1969-03-29 | 1970-03-30 | Procede de fabrication des tubes perfores en matiere plastique utilises speciallement pour drainage et filtrage et installation pour la realisation du procede |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL13265769A PL88468B1 (ro) | 1969-03-29 | 1969-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL88468B1 true PL88468B1 (ro) | 1976-09-30 |
Family
ID=19950487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL13265769A PL88468B1 (ro) | 1969-03-29 | 1969-03-29 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2014796B2 (ro) |
| FR (1) | FR2040097A5 (ro) |
| PL (1) | PL88468B1 (ro) |
| RO (1) | RO61925A (ro) |
-
1969
- 1969-03-29 PL PL13265769A patent/PL88468B1/xx unknown
-
1970
- 1970-03-26 DE DE19702014796 patent/DE2014796B2/de active Pending
- 1970-03-27 FR FR7011192A patent/FR2040097A5/fr not_active Expired
- 1970-03-30 RO RO6293570A patent/RO61925A/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2014796B2 (de) | 1975-02-13 |
| DE2014796A1 (de) | 1971-11-04 |
| RO61925A (fr) | 1977-11-15 |
| FR2040097A5 (en) | 1971-01-15 |