BE385550A - - Google Patents
Info
- Publication number
- BE385550A BE385550A BE385550DA BE385550A BE 385550 A BE385550 A BE 385550A BE 385550D A BE385550D A BE 385550DA BE 385550 A BE385550 A BE 385550A
- Authority
- BE
- Belgium
- Prior art keywords
- rule
- cylinder
- parallel
- curves
- ruler
- Prior art date
Links
- 230000001419 dependent effect Effects 0.000 claims 1
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L7/00—Straightedges
- B43L7/08—Straightedges with arrangements for attaching additional drawing equipment, e.g. for hatching, dotting
Landscapes
- Drawing Aids And Blackboards (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE385550A true BE385550A (https=) |
Family
ID=54383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE385550D BE385550A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE385550A (https=) |
-
0
- BE BE385550D patent/BE385550A/fr unknown
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