FR943719A - Systèmes de signalisation électrique - Google Patents
Systèmes de signalisation électriqueInfo
- Publication number
- FR943719A FR943719A FR943719DA FR943719A FR 943719 A FR943719 A FR 943719A FR 943719D A FR943719D A FR 943719DA FR 943719 A FR943719 A FR 943719A
- Authority
- FR
- France
- Prior art keywords
- signaling systems
- electrical signaling
- electrical
- systems
- signaling
- Prior art date
- 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.)
- Expired
Links
- 230000011664 signaling Effects 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/165—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents in the manufacture of multilayered shell moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Magnetically Actuated Valves (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB278426X | 1946-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR943719A true FR943719A (fr) | 1949-03-16 |
Family
ID=10266183
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR943719D Expired FR943719A (fr) | 1946-02-05 | 1946-12-26 | Systèmes de signalisation électrique |
| FR55195D Expired FR55195E (fr) | 1946-02-05 | 1947-02-05 | Systèmes de signalisation électrique |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR55195D Expired FR55195E (fr) | 1946-02-05 | 1947-02-05 | Systèmes de signalisation électrique |
Country Status (6)
-
0
- NL NL130202D patent/NL130202C/xx active
- BE BE473246D patent/BE473246A/xx unknown
- NL NL279838D patent/NL279838A/xx unknown
-
1946
- 1946-02-05 GB GB3618/46A patent/GB623380A/en not_active Expired
- 1946-02-05 GB GB3616/46A patent/GB621384A/en not_active Expired
- 1946-12-26 FR FR943719D patent/FR943719A/fr not_active Expired
-
1947
- 1947-01-24 CH CH278426D patent/CH278426A/fr unknown
- 1947-01-30 ES ES176606A patent/ES176606A1/es not_active Expired
- 1947-01-31 CH CH289745D patent/CH289745A/de unknown
- 1947-02-05 FR FR55195D patent/FR55195E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH278426A (fr) | 1951-10-15 |
| ES176606A1 (es) | 1947-03-01 |
| NL279838A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| GB623380A (en) | 1949-05-17 |
| NL130202C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| FR55195E (fr) | 1951-10-02 |
| CH289745A (de) | 1953-03-31 |
| BE473246A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| GB621384A (en) | 1949-04-08 |
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