NL67422C - - Google Patents
Info
- Publication number
- NL67422C NL67422C NL137879A NL137879A NL67422C NL 67422 C NL67422 C NL 67422C NL 137879 A NL137879 A NL 137879A NL 137879 A NL137879 A NL 137879A NL 67422 C NL67422 C NL 67422C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/005—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for remote controlled apparatus; for lines connecting such apparatus
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2220/00—General furniture construction, e.g. fittings
- A47B2220/11—Tripod parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/44—Leg joints; Corner joints
- F16B2012/443—Leg joints; Corner joints with two-dimensional corner element, the legs thereof being inserted in hollow frame members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/44—Leg joints; Corner joints
- F16B2012/446—Leg joints; Corner joints with three-dimensional corner element, the legs thereof being inserted in hollow frame members
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB673441A GB549679A (en) | 1941-05-26 | 1941-05-26 | Improvements in or relating to control and protective systems for electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL67422C true NL67422C (en) | 1951-02-15 |
Family
ID=37872326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL137879A NL67422C (en) | 1941-05-26 | 1947-12-30 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR932451A (en) |
| GB (1) | GB549679A (en) |
| NL (1) | NL67422C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2974261A (en) * | 1957-09-24 | 1961-03-07 | Lacheur Angus Guild Le | Intrinsically safe switching system |
| GB2128047B (en) * | 1982-10-05 | 1986-10-08 | Northern Eng Ind | Earth leakage monitor & earth proving apparatus |
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1941
- 1941-05-26 GB GB673441A patent/GB549679A/en not_active Expired
-
1946
- 1946-08-20 FR FR932451D patent/FR932451A/en not_active Expired
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1947
- 1947-12-30 NL NL137879A patent/NL67422C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| GB549679A (en) | 1942-12-02 |
| FR932451A (en) | 1948-03-23 |