DE172788C - - Google Patents
Info
- Publication number
- DE172788C DE172788C DENDAT172788D DE172788DA DE172788C DE 172788 C DE172788 C DE 172788C DE NDAT172788 D DENDAT172788 D DE NDAT172788D DE 172788D A DE172788D A DE 172788DA DE 172788 C DE172788 C DE 172788C
- Authority
- DE
- Germany
- Prior art keywords
- leg
- screw spindle
- moved
- rotation
- pull spring
- 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
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/06—Non-circular-curve-drawing instruments for drawing spirals
Landscapes
- Transmission Devices (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
DE172788C true DE172788C (cs) |
Family
ID=437651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT172788D Active DE172788C (cs) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE172788C (cs) |
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0
- DE DENDAT172788D patent/DE172788C/de active Active
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