NL139211C - - Google Patents
Info
- Publication number
- NL139211C NL139211C NL139211DA NL139211C NL 139211 C NL139211 C NL 139211C NL 139211D A NL139211D A NL 139211DA NL 139211 C NL139211 C NL 139211C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H61/00—Electrothermal relays
- H01H61/01—Details
- H01H61/013—Heating arrangements for operating relays
- H01H61/017—Heating by glow discharge or arc in confined space
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US638724XA | 1947-05-10 | 1947-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL139211C true NL139211C (https=) |
Family
ID=22052061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL139211D NL139211C (https=) | 1947-05-10 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB638724A (https=) |
| NL (1) | NL139211C (https=) |
-
0
- NL NL139211D patent/NL139211C/xx active
-
1948
- 1948-03-09 GB GB7204/48A patent/GB638724A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB638724A (en) | 1950-06-14 |