DE87116C - - Google Patents
Info
- Publication number
- DE87116C DE87116C DENDAT87116D DE87116DA DE87116C DE 87116 C DE87116 C DE 87116C DE NDAT87116 D DENDAT87116 D DE NDAT87116D DE 87116D A DE87116D A DE 87116DA DE 87116 C DE87116 C DE 87116C
- Authority
- DE
- Germany
- Prior art keywords
- ruler
- legs
- double
- parallel
- rulers
- 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
- 239000011324 bead Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 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
Landscapes
- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE87116C true DE87116C (esLanguage) |
Family
ID=359113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT87116D Active DE87116C (esLanguage) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE87116C (esLanguage) |
-
0
- DE DENDAT87116D patent/DE87116C/de active Active
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