BE443023A - - Google Patents
Info
- Publication number
- BE443023A BE443023A BE443023DA BE443023A BE 443023 A BE443023 A BE 443023A BE 443023D A BE443023D A BE 443023DA BE 443023 A BE443023 A BE 443023A
- Authority
- BE
- Belgium
Links
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/62—Three oxygen atoms, e.g. ascorbic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE261040X | 1940-10-26 | ||
DE91140X | 1940-11-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE443023A true BE443023A (tr) |
Family
ID=25750063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE443023D BE443023A (tr) | 1940-10-26 |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE443023A (tr) |
CH (2) | CH225440A (tr) |
FR (1) | FR875486A (tr) |
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0
- BE BE443023D patent/BE443023A/xx unknown
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1941
- 1941-09-18 CH CH225440D patent/CH225440A/de unknown
- 1941-09-23 FR FR875486D patent/FR875486A/fr not_active Expired
- 1941-10-29 CH CH227121D patent/CH227121A/de unknown
Also Published As
Publication number | Publication date |
---|---|
FR875486A (fr) | 1942-09-23 |
CH227121A (de) | 1943-05-31 |
CH225440A (de) | 1943-01-31 |