BE389246A - - Google Patents
Info
- Publication number
- BE389246A BE389246A BE389246DA BE389246A BE 389246 A BE389246 A BE 389246A BE 389246D A BE389246D A BE 389246DA BE 389246 A BE389246 A BE 389246A
- Authority
- BE
- Belgium
- Prior art keywords
- plate
- base plate
- hoops
- extension
- letter
- Prior art date
Links
- 239000011230 binding agent Substances 0.000 claims description 20
- 230000010355 oscillation Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
- B42F13/00—Filing appliances with means for engaging perforations or slots
- B42F13/16—Filing appliances with means for engaging perforations or slots with claws or rings
Landscapes
- Sheet Holders (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE389246A true BE389246A (forum.php) |
Family
ID=57394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE389246D BE389246A (forum.php) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE389246A (forum.php) |
-
0
- BE BE389246D patent/BE389246A/fr unknown
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