JPS4842825A - - Google Patents
Info
- Publication number
- JPS4842825A JPS4842825A JP46077240A JP7724071A JPS4842825A JP S4842825 A JPS4842825 A JP S4842825A JP 46077240 A JP46077240 A JP 46077240A JP 7724071 A JP7724071 A JP 7724071A JP S4842825 A JPS4842825 A JP S4842825A
- 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.)
- Pending
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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C1/00—Computing aids in which the computing members form at least part of the displayed result and are manipulated directly by hand, e.g. abacuses or pocket adding devices
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46077240A JPS4842825A (ja) | 1971-10-02 | 1971-10-02 | |
| US00288408A US3743750A (en) | 1971-10-02 | 1972-09-12 | Toy calculator for education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46077240A JPS4842825A (ja) | 1971-10-02 | 1971-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4842825A true JPS4842825A (ja) | 1973-06-21 |
Family
ID=13628326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP46077240A Pending JPS4842825A (ja) | 1971-10-02 | 1971-10-02 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3743750A (ja) |
| JP (1) | JPS4842825A (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6385153A (ja) * | 1986-09-29 | 1988-04-15 | 三井化学株式会社 | スパンボンド不織布及びその製造方法 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205747A (en) * | 1992-05-13 | 1993-04-27 | Daravuth Tan | Bead calculator educational toy |
| US6716033B1 (en) * | 2000-11-03 | 2004-04-06 | Kidspark, Llc | System for teaching mathematics |
| US6758675B2 (en) * | 2002-02-04 | 2004-07-06 | James M. Karabaic | Base ten primary teaching kit |
| US7828553B2 (en) * | 2007-08-24 | 2010-11-09 | Carla Baerg | Mathematics teaching aid |
| US20140129986A1 (en) * | 2012-11-02 | 2014-05-08 | Camiloc Oy Ltd | Method for providing operands for a mathematical operation in a calculator device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US565797A (en) * | 1896-08-11 | Arithmetical card | ||
| US613432A (en) * | 1898-11-01 | Stanislas szenhak | ||
| US1289743A (en) * | 1917-03-08 | 1918-12-31 | Goldie Hammond | Educational device. |
-
1971
- 1971-10-02 JP JP46077240A patent/JPS4842825A/ja active Pending
-
1972
- 1972-09-12 US US00288408A patent/US3743750A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6385153A (ja) * | 1986-09-29 | 1988-04-15 | 三井化学株式会社 | スパンボンド不織布及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3743750A (en) | 1973-07-03 |