FR2173313B3 - - Google Patents
Info
- Publication number
- FR2173313B3 FR2173313B3 FR7306704A FR7306704A FR2173313B3 FR 2173313 B3 FR2173313 B3 FR 2173313B3 FR 7306704 A FR7306704 A FR 7306704A FR 7306704 A FR7306704 A FR 7306704A FR 2173313 B3 FR2173313 B3 FR 2173313B3
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722208990 DE2208990A1 (de) | 1972-02-25 | 1972-02-25 | Verfahren zum bleichen mit chloraten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2173313A1 FR2173313A1 (en) | 1973-10-05 |
| FR2173313B3 true FR2173313B3 (no) | 1976-03-05 |
Family
ID=5837124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7306704A Granted FR2173313A1 (en) | 1972-02-25 | 1973-02-26 | Chloric acid or chlorate bleaching agent - contg glyoxal and/or formaldehyde |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2208990A1 (no) |
| FR (1) | FR2173313A1 (no) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191708B (zh) * | 2011-03-30 | 2012-10-10 | 陕西科技大学 | 一种乙二醛在马尾松硫酸盐浆无元素氯多段漂白的方法 |
-
1972
- 1972-02-25 DE DE19722208990 patent/DE2208990A1/de active Pending
-
1973
- 1973-02-26 FR FR7306704A patent/FR2173313A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2173313A1 (en) | 1973-10-05 |
| DE2208990A1 (de) | 1973-08-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |