FR561004A - Table de multiplication lumineuse - Google Patents
Table de multiplication lumineuseInfo
- Publication number
- FR561004A FR561004A FR561004DA FR561004A FR 561004 A FR561004 A FR 561004A FR 561004D A FR561004D A FR 561004DA FR 561004 A FR561004 A FR 561004A
- Authority
- FR
- France
- Prior art keywords
- multiplication table
- light multiplication
- light
- multiplication
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR561004T | 1922-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR561004A true FR561004A (fr) | 1923-10-15 |
Family
ID=8943323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR561004D Expired FR561004A (fr) | 1922-12-19 | 1922-12-19 | Table de multiplication lumineuse |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR561004A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2970386A (en) * | 1958-11-26 | 1961-02-07 | Richard E Knutson | Arithmetic instructing aid circuit |
-
1922
- 1922-12-19 FR FR561004D patent/FR561004A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2970386A (en) * | 1958-11-26 | 1961-02-07 | Richard E Knutson | Arithmetic instructing aid circuit |
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