CH227258A - Process for making electrical contacts. - Google Patents
Process for making electrical contacts.Info
- Publication number
- CH227258A CH227258A CH227258DA CH227258A CH 227258 A CH227258 A CH 227258A CH 227258D A CH227258D A CH 227258DA CH 227258 A CH227258 A CH 227258A
- Authority
- CH
- Switzerland
- Prior art keywords
- electrical contacts
- making electrical
- making
- contacts
- electrical
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/46—Electroplating: Baths therefor from solutions of silver
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/003—Tubes with plural electrode systems
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE271140X | 1940-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH227258A true CH227258A (en) | 1943-05-31 |
Family
ID=6003767
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH225657D CH225657A (en) | 1940-11-27 | 1941-10-03 | Amplifier tube. |
CH227258D CH227258A (en) | 1940-11-27 | 1941-12-24 | Process for making electrical contacts. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH225657D CH225657A (en) | 1940-11-27 | 1941-10-03 | Amplifier tube. |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE443921A (en) |
CH (2) | CH225657A (en) |
FR (1) | FR884058A (en) |
NL (1) | NL62821C (en) |
-
0
- NL NL62821D patent/NL62821C/xx active
- BE BE443921D patent/BE443921A/xx unknown
-
1941
- 1941-10-03 CH CH225657D patent/CH225657A/en unknown
- 1941-12-22 FR FR884058D patent/FR884058A/en not_active Expired
- 1941-12-24 CH CH227258D patent/CH227258A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR884058A (en) | 1943-08-02 |
BE443921A (en) | |
NL62821C (en) | |
CH225657A (en) | 1943-02-15 |
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