NL39552C - - Google Patents
Info
- Publication number
- NL39552C NL39552C NL59835A NL59835A NL39552C NL 39552 C NL39552 C NL 39552C NL 59835 A NL59835 A NL 59835A NL 59835 A NL59835 A NL 59835A NL 39552 C NL39552 C NL 39552C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Elimination Of Static Electricity (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH125077D DE556211C (de) | 1931-01-21 | 1931-01-21 | Einrichtung zum elektrischen Steuern von Reklamevorrichtungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL39552C true NL39552C (en(2012)) | 1936-12-15 |
Family
ID=6340197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL59835A NL39552C (en(2012)) | 1931-01-21 | 1932-01-13 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE556211C (en(2012)) |
| FR (1) | FR724112A (en(2012)) |
| GB (1) | GB373815A (en(2012)) |
| NL (1) | NL39552C (en(2012)) |
-
1931
- 1931-01-21 DE DEH125077D patent/DE556211C/de not_active Expired
- 1931-06-29 GB GB1877531A patent/GB373815A/en not_active Expired
- 1931-09-22 FR FR724112D patent/FR724112A/fr not_active Expired
-
1932
- 1932-01-13 NL NL59835A patent/NL39552C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| FR724112A (fr) | 1932-04-22 |
| DE556211C (de) | 1932-08-04 |
| GB373815A (en) | 1932-06-02 |