IT977902B - Strumento calcolatore - Google Patents
Strumento calcolatoreInfo
- Publication number
- IT977902B IT977902B IT67502/73A IT6750273A IT977902B IT 977902 B IT977902 B IT 977902B IT 67502/73 A IT67502/73 A IT 67502/73A IT 6750273 A IT6750273 A IT 6750273A IT 977902 B IT977902 B IT 977902B
- Authority
- IT
- Italy
- Prior art keywords
- calculator tool
- calculator
- tool
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G1/00—Hand manipulated computing devices
- G06G1/0005—Hand manipulated computing devices characterised by a specific application
- G06G1/0047—Hand manipulated computing devices characterised by a specific application for printing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G1/00—Hand manipulated computing devices
- G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
- G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH301572A CH556060A (fr) | 1972-03-01 | 1972-03-01 | Dispositif pour faciliter la lecture de reglettes graduees. |
Publications (1)
Publication Number | Publication Date |
---|---|
IT977902B true IT977902B (it) | 1974-09-20 |
Family
ID=4246717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67502/73A IT977902B (it) | 1972-03-01 | 1973-02-27 | Strumento calcolatore |
Country Status (8)
Country | Link |
---|---|
US (1) | US3831840A (it) |
JP (1) | JPS48101990A (it) |
CH (1) | CH556060A (it) |
DE (1) | DE2216407A1 (it) |
FR (1) | FR2174601A5 (it) |
GB (1) | GB1393502A (it) |
IT (1) | IT977902B (it) |
NL (1) | NL7302266A (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4272674A (en) | 1977-10-31 | 1981-06-09 | Tokyo Keiki Company Ltd. | Check digit calculator |
JPS5463642A (en) | 1977-10-31 | 1979-05-22 | Tokyo Keiki Kk | Check digit calculator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US67269A (en) * | 1867-07-30 | coffin | ||
US1354977A (en) * | 1916-10-03 | 1920-10-05 | Charles T Kammeyer | Type-gage |
US2643058A (en) * | 1951-07-23 | 1953-06-23 | Michael J Quillinan | Slide rule |
US3197135A (en) * | 1963-07-24 | 1965-07-27 | Turner M Osler | Slide rule |
US3272431A (en) * | 1965-07-15 | 1966-09-13 | Cesar M Dablo | Fraction-decimal calculator |
-
1972
- 1972-03-01 CH CH301572A patent/CH556060A/fr not_active IP Right Cessation
- 1972-04-05 DE DE2216407A patent/DE2216407A1/de active Pending
-
1973
- 1973-02-19 NL NL7302266A patent/NL7302266A/xx unknown
- 1973-02-27 FR FR7306944A patent/FR2174601A5/fr not_active Expired
- 1973-02-27 GB GB952973A patent/GB1393502A/en not_active Expired
- 1973-02-27 IT IT67502/73A patent/IT977902B/it active
- 1973-02-28 JP JP2423773A patent/JPS48101990A/ja active Pending
- 1973-02-28 US US00336622A patent/US3831840A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2216407A1 (de) | 1973-09-06 |
NL7302266A (it) | 1973-09-04 |
FR2174601A5 (it) | 1973-10-12 |
CH556060A (fr) | 1974-11-15 |
JPS48101990A (it) | 1973-12-21 |
GB1393502A (en) | 1975-05-07 |
US3831840A (en) | 1974-08-27 |
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