CH250086A - Drawing and hatching ruler with graduation. - Google Patents
Drawing and hatching ruler with graduation.Info
- Publication number
- CH250086A CH250086A CH250086DA CH250086A CH 250086 A CH250086 A CH 250086A CH 250086D A CH250086D A CH 250086DA CH 250086 A CH250086 A CH 250086A
- Authority
- CH
- Switzerland
- Prior art keywords
- graduation
- hatching
- ruler
- hatching ruler
- Prior art date
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
- B43L7/04—Straightedges with rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drawing Aids And Blackboards (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH250086T | 1946-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH250086A true CH250086A (en) | 1947-08-15 |
Family
ID=4549593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH250086D CH250086A (en) | 1946-03-21 | 1946-03-21 | Drawing and hatching ruler with graduation. |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH250086A (en) |
DE (1) | DE860909C (en) |
FR (1) | FR943510A (en) |
-
1946
- 1946-03-21 CH CH250086D patent/CH250086A/en unknown
-
1947
- 1947-03-21 FR FR943510D patent/FR943510A/en not_active Expired
-
1950
- 1950-01-02 DE DE1950U0000092 patent/DE860909C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR943510A (en) | 1949-03-10 |
DE860909C (en) | 1952-12-29 |
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