BE677216A - - Google Patents
Info
- Publication number
- BE677216A BE677216A BE677216DA BE677216A BE 677216 A BE677216 A BE 677216A BE 677216D A BE677216D A BE 677216DA BE 677216 A BE677216 A BE 677216A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/68—Preparation processes not covered by groups G03F1/20 - G03F1/50
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/10—Writing surfaces thereof
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43609165A | 1965-03-01 | 1965-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE677216A true BE677216A (en) | 1966-09-01 |
Family
ID=23731075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE677216D BE677216A (en) | 1965-03-01 | 1966-03-01 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE677216A (en) |
| CH (1) | CH430426A (en) |
| DE (1) | DE1511286A1 (en) |
| GB (1) | GB1146289A (en) |
| NL (1) | NL6602641A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2319172A1 (en) * | 1975-07-25 | 1977-02-18 | Cellophane Sa | Inscription transmission system using projector - uses transparent slide with opaque film which is written on by stylus |
| DE2721687C2 (en) * | 1977-05-13 | 1986-11-20 | Hoechst Ag, 6230 Frankfurt | Process for covering master copies with masks |
| DE2845401C2 (en) * | 1978-10-18 | 1980-10-02 | Gao Gesellschaft Fuer Automation Und Organisation Mbh, 8000 Muenchen | Printed security with authenticity features and procedures for checking its authenticity |
| CN114680349B (en) * | 2020-12-31 | 2023-05-26 | 广东美的白色家电技术创新中心有限公司 | Cleaning device |
-
1966
- 1966-02-26 DE DE19661511286 patent/DE1511286A1/en active Pending
- 1966-02-28 CH CH282366A patent/CH430426A/en unknown
- 1966-03-01 GB GB892866A patent/GB1146289A/en not_active Expired
- 1966-03-01 BE BE677216D patent/BE677216A/xx unknown
- 1966-03-01 NL NL6602641A patent/NL6602641A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1511286A1 (en) | 1969-06-26 |
| GB1146289A (en) | 1969-03-26 |
| CH430426A (en) | 1967-02-15 |
| NL6602641A (en) | 1966-09-02 |