DE159085C - - Google Patents
Info
- Publication number
- DE159085C DE159085C DENDAT159085D DE159085DA DE159085C DE 159085 C DE159085 C DE 159085C DE NDAT159085 D DENDAT159085 D DE NDAT159085D DE 159085D A DE159085D A DE 159085DA DE 159085 C DE159085 C DE 159085C
- Authority
- DE
- Germany
- Prior art keywords
- ruler
- parts
- tips
- springs
- adjustable
- 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
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)
Publications (1)
Publication Number | Publication Date |
---|---|
DE159085C true DE159085C (fr) |
Family
ID=425200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT159085D Active DE159085C (fr) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE159085C (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3473228A (en) * | 1967-05-19 | 1969-10-21 | Walter Erich Hortmann | Precision drafting apparatus |
-
0
- DE DENDAT159085D patent/DE159085C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3473228A (en) * | 1967-05-19 | 1969-10-21 | Walter Erich Hortmann | Precision drafting apparatus |
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