JPS4833895A - - Google Patents
Info
- Publication number
- JPS4833895A JPS4833895A JP47076879A JP7687972A JPS4833895A JP S4833895 A JPS4833895 A JP S4833895A JP 47076879 A JP47076879 A JP 47076879A JP 7687972 A JP7687972 A JP 7687972A JP S4833895 A JPS4833895 A JP S4833895A
- 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
- G06—COMPUTING OR CALCULATING; COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C7/00—Input mechanisms
- G06C7/02—Keyboards
- G06C7/04—Interlocking devices, e.g. between keys
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Cash Registers Or Receiving Machines (AREA)
- Lock And Its Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17700571A | 1971-09-01 | 1971-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4833895A true JPS4833895A (enrdf_load_stackoverflow) | 1973-05-14 |
Family
ID=22646789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47076879A Pending JPS4833895A (enrdf_load_stackoverflow) | 1971-09-01 | 1972-07-31 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3703987A (enrdf_load_stackoverflow) |
| JP (1) | JPS4833895A (enrdf_load_stackoverflow) |
| CA (1) | CA950425A (enrdf_load_stackoverflow) |
| GB (1) | GB1366732A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS548049B1 (enrdf_load_stackoverflow) * | 1971-03-12 | 1979-04-12 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864537A (ja) * | 1981-10-13 | 1983-04-16 | Casio Comput Co Ltd | 電子レジスタ |
| US6768428B1 (en) | 2002-03-27 | 2004-07-27 | Blaine C. Readler | Computer keyboard lock |
| US8522309B2 (en) * | 2007-01-22 | 2013-08-27 | Simon Yoffe | Security switch |
| US8090961B2 (en) * | 2007-01-22 | 2012-01-03 | Simon Yoffe | Security switch |
| WO2020006477A1 (en) | 2018-06-29 | 2020-01-02 | Purism | Electronic kill and physical cover switch |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2210065A (en) * | 1940-08-06 | Cash register | ||
| US2280958A (en) * | 1942-04-28 | Cash register | ||
| US3464623A (en) * | 1964-08-11 | 1969-09-02 | Sperry Rand Corp | Control mechanism for calculating machine |
| US3516604A (en) * | 1968-01-10 | 1970-06-23 | Ibm | Sequential keyboard interlock |
-
1971
- 1971-09-01 US US177005A patent/US3703987A/en not_active Expired - Lifetime
-
1972
- 1972-06-14 CA CA144,730,A patent/CA950425A/en not_active Expired
- 1972-07-31 JP JP47076879A patent/JPS4833895A/ja active Pending
- 1972-08-25 GB GB3969372A patent/GB1366732A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS548049B1 (enrdf_load_stackoverflow) * | 1971-03-12 | 1979-04-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1366732A (enrdf_load_stackoverflow) | 1974-09-11 |
| US3703987A (en) | 1972-11-28 |
| CA950425A (en) | 1974-07-02 |