BE371053A - - Google Patents
Info
- Publication number
- BE371053A BE371053A BE371053DA BE371053A BE 371053 A BE371053 A BE 371053A BE 371053D A BE371053D A BE 371053DA BE 371053 A BE371053 A BE 371053A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3385229A GB342733A (en) | 1929-11-06 | 1929-11-06 | Improvements in keyboards for use in telephone or like systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE371053A true BE371053A (en:Method) |
Family
ID=10358284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE371053D BE371053A (en:Method) | 1929-11-06 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE371053A (en:Method) |
| FR (1) | FR712343A (en:Method) |
| GB (1) | GB342733A (en:Method) |
-
0
- BE BE371053D patent/BE371053A/xx unknown
-
1929
- 1929-11-06 GB GB3385229A patent/GB342733A/en not_active Expired
-
1930
- 1930-06-14 FR FR712343D patent/FR712343A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB342733A (en) | 1931-02-06 |
| FR712343A (fr) | 1931-10-15 |