JPS527773B2 - - Google Patents
Info
- Publication number
- JPS527773B2 JPS527773B2 JP47115189A JP11518972A JPS527773B2 JP S527773 B2 JPS527773 B2 JP S527773B2 JP 47115189 A JP47115189 A JP 47115189A JP 11518972 A JP11518972 A JP 11518972A JP S527773 B2 JPS527773 B2 JP S527773B2
- Authority
- JP
- Japan
- 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
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/16—Features common to compasses, dividers, and callipers
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7140919A FR2161163A5 (en) | 1971-11-16 | 1971-11-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4862521A JPS4862521A (en) | 1973-08-31 |
| JPS527773B2 true JPS527773B2 (en) | 1977-03-04 |
Family
ID=9085820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47115189A Expired JPS527773B2 (en) | 1971-11-16 | 1972-11-16 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3745662A (en) |
| JP (1) | JPS527773B2 (en) |
| DE (2) | DE2264990C2 (en) |
| FR (1) | FR2161163A5 (en) |
| GB (1) | GB1366023A (en) |
| IT (1) | IT975741B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106200A (en) * | 1976-02-02 | 1978-08-15 | David Maxwell | Marker compass |
| DE2718627C2 (en) * | 1977-04-27 | 1981-04-16 | Rotring-Werke Riepe Kg, 2000 Hamburg | Compass head for a spring bow compass |
| DE3207991C2 (en) * | 1982-03-05 | 1984-08-09 | Fa. J.S. Staedtler, 8500 Nürnberg | Compass with setting spindle |
| DE3838473C1 (en) * | 1988-03-15 | 1989-06-01 | Intertech Zeichengeraete Guenther Partes Kg, 8535 Emskirchen, De | Fine adjustment compass |
| DE4411828A1 (en) * | 1994-03-31 | 1995-10-05 | Reimar Koerth | String-bow divider for compass |
| US20050079079A1 (en) * | 2003-10-09 | 2005-04-14 | Wahlin Sigvard J. | Dilution system |
| CN108656801A (en) * | 2018-05-08 | 2018-10-16 | 吴烁 | A kind of mathematical education auxiliary teaching device applied to education and instruction |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE176441C (en) * | ||||
| US335740A (en) * | 1886-02-09 | Assigfoe to | ||
| DE356998C (en) * | 1922-08-11 | Reisszeugfabrik Pfronten | Subcircle | |
| US3110111A (en) * | 1960-08-01 | 1963-11-12 | Frank C Pachter | Quick adjusting means for relatively positionable members |
| DE1461568A1 (en) * | 1963-04-10 | 1969-01-02 | Clemens Riefler Fabrik Mathem | Compass with a spindle that connects both legs to one another in an adjustable manner |
-
1971
- 1971-11-16 FR FR7140919A patent/FR2161163A5/fr not_active Expired
-
1972
- 1972-11-13 DE DE2264990A patent/DE2264990C2/en not_active Expired
- 1972-11-13 DE DE2255521A patent/DE2255521C3/en not_active Expired
- 1972-11-15 IT IT70587/72A patent/IT975741B/en active
- 1972-11-15 GB GB5280272A patent/GB1366023A/en not_active Expired
- 1972-11-16 JP JP47115189A patent/JPS527773B2/ja not_active Expired
- 1972-11-16 US US00307295A patent/US3745662A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4862521A (en) | 1973-08-31 |
| FR2161163A5 (en) | 1973-07-06 |
| GB1366023A (en) | 1974-09-04 |
| DE2255521B2 (en) | 1976-12-16 |
| DE2264990A1 (en) | 1975-10-30 |
| US3745662A (en) | 1973-07-17 |
| DE2255521A1 (en) | 1973-06-14 |
| IT975741B (en) | 1974-08-10 |
| DE2264990C2 (en) | 1982-03-25 |
| DE2255521C3 (en) | 1979-08-30 |