FR998966A - Drafting table for topographic surveys - Google Patents
Drafting table for topographic surveysInfo
- Publication number
- FR998966A FR998966A FR998966DA FR998966A FR 998966 A FR998966 A FR 998966A FR 998966D A FR998966D A FR 998966DA FR 998966 A FR998966 A FR 998966A
- Authority
- FR
- France
- Prior art keywords
- drafting table
- topographic surveys
- topographic
- surveys
- drafting
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/02—Magnetic compasses
- G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
- G01C17/10—Comparing observed direction with north indication
- G01C17/12—Comparing observed direction with north indication by sighting means, e.g. for surveyors' compasses
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS998966X | 1948-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR998966A true FR998966A (en) | 1952-01-25 |
Family
ID=5456965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR998966D Expired FR998966A (en) | 1948-11-15 | 1949-11-07 | Drafting table for topographic surveys |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR998966A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3311982A (en) * | 1965-10-01 | 1967-04-04 | Guerry M Dalrymple | Drawing equipment |
US3824693A (en) * | 1973-02-26 | 1974-07-23 | K Cherry | Navigational devices |
-
1949
- 1949-11-07 FR FR998966D patent/FR998966A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3311982A (en) * | 1965-10-01 | 1967-04-04 | Guerry M Dalrymple | Drawing equipment |
US3824693A (en) * | 1973-02-26 | 1974-07-23 | K Cherry | Navigational devices |
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