CH266128A - Parallel guidance for drawing board rulers. - Google Patents
Parallel guidance for drawing board rulers.Info
- Publication number
- CH266128A CH266128A CH266128DA CH266128A CH 266128 A CH266128 A CH 266128A CH 266128D A CH266128D A CH 266128DA CH 266128 A CH266128 A CH 266128A
- Authority
- CH
- Switzerland
- Prior art keywords
- rulers
- drawing board
- parallel guidance
- guidance
- parallel
- 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
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP19209A DE810249C (en) | 1948-10-22 | 1948-10-22 | Parallel guide for drawing board rulers |
Publications (1)
Publication Number | Publication Date |
---|---|
CH266128A true CH266128A (en) | 1950-01-15 |
Family
ID=7367365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH266128D CH266128A (en) | 1948-10-22 | 1947-12-02 | Parallel guidance for drawing board rulers. |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH266128A (en) |
DE (1) | DE810249C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3308542A (en) * | 1964-12-21 | 1967-03-14 | Hazelton Products Inc | Draftsman's instrument |
-
1947
- 1947-12-02 CH CH266128D patent/CH266128A/en unknown
-
1948
- 1948-10-22 DE DEP19209A patent/DE810249C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3308542A (en) * | 1964-12-21 | 1967-03-14 | Hazelton Products Inc | Draftsman's instrument |
Also Published As
Publication number | Publication date |
---|---|
DE810249C (en) | 1951-08-06 |
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