BE729410A - - Google Patents
Info
- Publication number
- BE729410A BE729410A BE729410DA BE729410A BE 729410 A BE729410 A BE 729410A BE 729410D A BE729410D A BE 729410DA BE 729410 A BE729410 A BE 729410A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C7/00—Input mechanisms
- G06C7/02—Keyboards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0006—Permanent magnet actuating reed switches
- H01H36/004—Permanent magnet actuating reed switches push-button-operated, e.g. for keyboards
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6803209A NL6803209A (xx) | 1968-03-07 | 1968-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE729410A true BE729410A (xx) | 1969-09-05 |
Family
ID=19802958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE729410D BE729410A (xx) | 1968-03-07 | 1969-03-05 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3539958A (xx) |
| JP (1) | JPS4617161B1 (xx) |
| AT (1) | AT292068B (xx) |
| BE (1) | BE729410A (xx) |
| CH (1) | CH497037A (xx) |
| DE (1) | DE1907743C3 (xx) |
| ES (1) | ES364391A1 (xx) |
| FR (1) | FR2003429A1 (xx) |
| GB (1) | GB1197867A (xx) |
| NL (1) | NL6803209A (xx) |
| SE (1) | SE384930B (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3702449A (en) * | 1971-08-27 | 1972-11-07 | Singer Co | Keyboard assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL249801A (xx) * | 1959-03-21 | |||
| GB1062504A (en) * | 1965-10-01 | 1967-03-22 | Standard Telephones Cables Ltd | Improvements in or relating to push-button magnetic switches |
| US3292125A (en) * | 1965-10-15 | 1966-12-13 | Clary Corp | Magnetically key operated switching device |
-
1968
- 1968-03-07 NL NL6803209A patent/NL6803209A/xx unknown
-
1969
- 1969-02-15 DE DE1907743A patent/DE1907743C3/de not_active Expired
- 1969-02-26 US US802495A patent/US3539958A/en not_active Expired - Lifetime
- 1969-03-04 SE SE6902957A patent/SE384930B/xx unknown
- 1969-03-04 AT AT212269A patent/AT292068B/de not_active IP Right Cessation
- 1969-03-04 JP JP1593069A patent/JPS4617161B1/ja active Pending
- 1969-03-04 CH CH329069A patent/CH497037A/de not_active IP Right Cessation
- 1969-03-04 GB GB11463/69A patent/GB1197867A/en not_active Expired
- 1969-03-05 ES ES364391A patent/ES364391A1/es not_active Expired
- 1969-03-05 BE BE729410D patent/BE729410A/xx unknown
- 1969-03-07 FR FR6906372A patent/FR2003429A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4617161B1 (xx) | 1971-05-12 |
| ES364391A1 (es) | 1971-02-01 |
| CH497037A (de) | 1970-09-30 |
| GB1197867A (en) | 1970-07-08 |
| SE384930B (sv) | 1976-05-24 |
| DE1907743B2 (de) | 1979-07-05 |
| DE1907743C3 (de) | 1980-03-13 |
| US3539958A (en) | 1970-11-10 |
| NL6803209A (xx) | 1969-09-09 |
| DE1907743A1 (de) | 1969-11-27 |
| AT292068B (de) | 1971-08-10 |
| FR2003429A1 (xx) | 1969-11-07 |