BE389906A - - Google Patents
Info
- Publication number
- BE389906A BE389906A BE389906DA BE389906A BE 389906 A BE389906 A BE 389906A BE 389906D A BE389906D A BE 389906DA BE 389906 A BE389906 A BE 389906A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/06—Sharpening files
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE404689X | 1931-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE389906A true BE389906A (pt-PT) |
Family
ID=6421830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE389906D BE389906A (pt-PT) | 1931-07-18 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1965037A (pt-PT) |
| BE (1) | BE389906A (pt-PT) |
| FR (1) | FR740075A (pt-PT) |
| GB (1) | GB404689A (pt-PT) |
| NL (1) | NL40194C (pt-PT) |
-
0
- NL NL40194D patent/NL40194C/xx active
- BE BE389906D patent/BE389906A/xx unknown
-
1932
- 1932-07-14 US US622818A patent/US1965037A/en not_active Expired - Lifetime
- 1932-07-18 FR FR740075D patent/FR740075A/fr not_active Expired
- 1932-07-18 GB GB20349/32A patent/GB404689A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL40194C (pt-PT) | |
| US1965037A (en) | 1934-07-03 |
| FR740075A (fr) | 1933-01-20 |
| GB404689A (en) | 1934-01-18 |