DE234281C - - Google Patents
Info
- Publication number
- DE234281C DE234281C DENDAT234281D DE234281DA DE234281C DE 234281 C DE234281 C DE 234281C DE NDAT234281 D DENDAT234281 D DE NDAT234281D DE 234281D A DE234281D A DE 234281DA DE 234281 C DE234281 C DE 234281C
- Authority
- DE
- Germany
- Prior art keywords
- parallelogram
- rod
- articulated
- drawing board
- rods
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000001138 Tears Anatomy 0.000 claims description 12
- 230000002265 prevention Effects 0.000 claims 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000000700 tracer 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/02—Draughting machines or drawing devices for keeping parallelism
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE234281C true DE234281C (ja) |
Family
ID=494148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT234281D Active DE234281C (ja) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE234281C (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191307A (en) * | 1962-05-07 | 1965-06-29 | Angelis George De | Method and apparatus for drawing three dimensional views of objects |
| US5147273A (en) * | 1989-07-15 | 1992-09-15 | Winkler & Duennebier Maschinenfabrik Kg | Method and apparatus for producing stacks of interleaved material sheets |
-
0
- DE DENDAT234281D patent/DE234281C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191307A (en) * | 1962-05-07 | 1965-06-29 | Angelis George De | Method and apparatus for drawing three dimensional views of objects |
| US5147273A (en) * | 1989-07-15 | 1992-09-15 | Winkler & Duennebier Maschinenfabrik Kg | Method and apparatus for producing stacks of interleaved material sheets |
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