CA1173164A - Calculatrice de fractions - Google Patents
Calculatrice de fractionsInfo
- Publication number
- CA1173164A CA1173164A CA000394402A CA394402A CA1173164A CA 1173164 A CA1173164 A CA 1173164A CA 000394402 A CA000394402 A CA 000394402A CA 394402 A CA394402 A CA 394402A CA 1173164 A CA1173164 A CA 1173164A
- Authority
- CA
- Canada
- Prior art keywords
- fraction
- data
- key
- decimal
- input
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP644681A JPS57121749A (en) | 1981-01-21 | 1981-01-21 | Fraction computer |
JP6446/1981 | 1981-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1173164A true CA1173164A (fr) | 1984-08-21 |
Family
ID=11638635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000394402A Expired CA1173164A (fr) | 1981-01-21 | 1982-01-18 | Calculatrice de fractions |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS57121749A (fr) |
CA (1) | CA1173164A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4872112A (en) * | 1988-07-25 | 1989-10-03 | Hungerford Roger D | Recipe calculator |
US5101368A (en) * | 1988-06-20 | 1992-03-31 | Seymour Kaplan | Conversion calculator |
US5138566A (en) * | 1990-10-01 | 1992-08-11 | John Comforti | Fractional/decimal/digital converting calculator |
-
1981
- 1981-01-21 JP JP644681A patent/JPS57121749A/ja active Pending
-
1982
- 1982-01-18 CA CA000394402A patent/CA1173164A/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5101368A (en) * | 1988-06-20 | 1992-03-31 | Seymour Kaplan | Conversion calculator |
US4872112A (en) * | 1988-07-25 | 1989-10-03 | Hungerford Roger D | Recipe calculator |
US5138566A (en) * | 1990-10-01 | 1992-08-11 | John Comforti | Fractional/decimal/digital converting calculator |
Also Published As
Publication number | Publication date |
---|---|
JPS57121749A (en) | 1982-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEC | Expiry (correction) | ||
MKEX | Expiry |