BE490132A - - Google Patents
Info
- Publication number
- BE490132A BE490132A BE490132DA BE490132A BE 490132 A BE490132 A BE 490132A BE 490132D A BE490132D A BE 490132DA BE 490132 A BE490132 A BE 490132A
- Authority
- BE
- Belgium
- Prior art keywords
- angles
- cover
- angle
- plate
- pins
- Prior art date
Links
- 229910000746 Structural steel Inorganic materials 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 210000003811 finger Anatomy 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000005224 forefinger Anatomy 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 210000003813 thumb Anatomy 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
- B42F13/20—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges
- B42F13/28—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges in two staggered sections
Landscapes
- Sheet Holders (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE490132A true BE490132A (https=) |
Family
ID=134914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE490132D BE490132A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE490132A (https=) |
-
0
- BE BE490132D patent/BE490132A/fr unknown
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