FR990745A - Improvement in drawing devices - Google Patents
Improvement in drawing devicesInfo
- Publication number
- FR990745A FR990745A FR990745DA FR990745A FR 990745 A FR990745 A FR 990745A FR 990745D A FR990745D A FR 990745DA FR 990745 A FR990745 A FR 990745A
- Authority
- FR
- France
- Prior art keywords
- improvement
- drawing devices
- devices
- 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.)
- Expired
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
- B43L13/04—Guides for rulers
- B43L13/06—Guides for rulers with pivoted guide rods
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR990745T | 1949-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR990745A true FR990745A (en) | 1951-09-25 |
Family
ID=9546705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR990745D Expired FR990745A (en) | 1949-05-06 | 1949-05-06 | Improvement in drawing devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR990745A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766651A (en) * | 1972-04-17 | 1973-10-23 | E Bullard | Drafting head assembly |
-
1949
- 1949-05-06 FR FR990745D patent/FR990745A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766651A (en) * | 1972-04-17 | 1973-10-23 | E Bullard | Drafting head assembly |
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