FR956491A - - Google Patents
Info
- Publication number
- FR956491A FR956491A FR956491DA FR956491A FR 956491 A FR956491 A FR 956491A FR 956491D A FR956491D A FR 956491DA FR 956491 A FR956491 A FR 956491A
- Authority
- FR
- France
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H67/00—Electrically-operated selector switches
- H01H67/22—Switches without multi-position wipers
- H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Keying Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2640882X | 1947-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR956491A true FR956491A (en) | 1950-02-02 |
Family
ID=19875159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR956491D Expired FR956491A (en) | 1947-09-13 |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US2640882A (en) |
| FR (1) | FR956491A (en) |
| NL (1) | NL71872C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012127127A1 (en) | 2011-03-18 | 2012-09-27 | Institut Regional Des Materiaux Avances (Irma) | Catalyst for reducing nox by means of hydrocarbons and oxygen compounds |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870262A (en) * | 1953-12-17 | 1959-01-20 | Gen Telephone Lab Inc | Control mechanism for two motion flat-type switches |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1097307A (en) * | 1906-12-04 | 1914-05-19 | Kellogg Switchboard & Supply | Telephone system. |
| US1925264A (en) * | 1920-09-03 | 1933-09-05 | Associated Electric Lab Inc | Automatic telephone system |
| GB325392A (en) * | 1929-02-21 | 1930-02-20 | Standard Telephones Cables Ltd | Improvements in and relating to automatic and semi-automatic telephone systems |
| BE369446A (en) * | 1929-06-26 | |||
| DE615685C (en) * | 1931-04-23 | 1935-07-16 | Siemens & Halske Akt Ges | Circuit arrangement for telephone systems with dialer operation and several exchanges in series |
-
0
- NL NL71872D patent/NL71872C/xx active
- FR FR956491D patent/FR956491A/fr not_active Expired
- US US24210D patent/USRE24210E/en not_active Expired
-
1948
- 1948-04-05 US US18865A patent/US2640882A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012127127A1 (en) | 2011-03-18 | 2012-09-27 | Institut Regional Des Materiaux Avances (Irma) | Catalyst for reducing nox by means of hydrocarbons and oxygen compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| USRE24210E (en) | 1956-09-04 |
| US2640882A (en) | 1953-06-02 |
| NL71872C (en) |