DE9301993U1 - - Google Patents
Info
- Publication number
- DE9301993U1 DE9301993U1 DE9301993U DE9301993U DE9301993U1 DE 9301993 U1 DE9301993 U1 DE 9301993U1 DE 9301993 U DE9301993 U DE 9301993U DE 9301993 U DE9301993 U DE 9301993U DE 9301993 U1 DE9301993 U1 DE 9301993U1
- Authority
- DE
- Germany
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/02—Counting; Calculating
Landscapes
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9301993U DE9301993U1 (zh) | 1993-02-12 | 1993-02-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9301993U DE9301993U1 (zh) | 1993-02-12 | 1993-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9301993U1 true DE9301993U1 (zh) | 1993-07-22 |
Family
ID=6889305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9301993U Expired - Lifetime DE9301993U1 (zh) | 1993-02-12 | 1993-02-12 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9301993U1 (zh) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1207908A (en) * | 1916-03-03 | 1916-12-12 | Elza Harness | Game and chance device. |
DE827878C (de) * | 1949-09-29 | 1952-01-14 | Erich Weber | Lehr- und Spielgeraet |
DE1705756U (de) * | 1955-03-22 | 1955-08-25 | Martin Prestel | Hilfsgeraet zur ermittlung von toto-tipreihen. |
DE1244448B (de) * | 1964-05-02 | 1967-07-13 | Alfred Eckhard | Tafelfoermiges Rechengeraet |
US3400472A (en) * | 1967-03-02 | 1968-09-10 | Education Res Council Of Great | Mathematics teaching device |
DE1905793A1 (de) * | 1969-02-06 | 1970-09-17 | Hansjuergen Wolany | Registriervorrichtung |
US3643347A (en) * | 1970-01-21 | 1972-02-22 | Sigi Ziering | Numeral base conversion instructional device |
DE8609373U1 (de) * | 1986-04-07 | 1986-08-07 | Grimm, Henry, 7513 Stutensee | Spielgerät |
DE9213589U1 (zh) * | 1992-10-08 | 1993-05-13 | Neuer Finken-Verlag Manfred Krick, 6370 Oberursel, De |
-
1993
- 1993-02-12 DE DE9301993U patent/DE9301993U1/de not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1207908A (en) * | 1916-03-03 | 1916-12-12 | Elza Harness | Game and chance device. |
DE827878C (de) * | 1949-09-29 | 1952-01-14 | Erich Weber | Lehr- und Spielgeraet |
DE1705756U (de) * | 1955-03-22 | 1955-08-25 | Martin Prestel | Hilfsgeraet zur ermittlung von toto-tipreihen. |
DE1244448B (de) * | 1964-05-02 | 1967-07-13 | Alfred Eckhard | Tafelfoermiges Rechengeraet |
US3400472A (en) * | 1967-03-02 | 1968-09-10 | Education Res Council Of Great | Mathematics teaching device |
DE1905793A1 (de) * | 1969-02-06 | 1970-09-17 | Hansjuergen Wolany | Registriervorrichtung |
US3643347A (en) * | 1970-01-21 | 1972-02-22 | Sigi Ziering | Numeral base conversion instructional device |
DE8609373U1 (de) * | 1986-04-07 | 1986-08-07 | Grimm, Henry, 7513 Stutensee | Spielgerät |
DE9213589U1 (zh) * | 1992-10-08 | 1993-05-13 | Neuer Finken-Verlag Manfred Krick, 6370 Oberursel, De |