NL51701C - - Google Patents
Info
- Publication number
- NL51701C NL51701C NL51701DA NL51701C NL 51701 C NL51701 C NL 51701C NL 51701D A NL51701D A NL 51701DA NL 51701 C NL51701 C NL 51701C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/40—Colouring or decolouring of foods
- A23L5/42—Addition of dyes or pigments, e.g. in combination with optical brighteners
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE696980X | 1929-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL51701C true NL51701C (xx) |
Family
ID=6607817
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL32889D NL32889C (xx) | 1929-05-18 | ||
| NL51701D NL51701C (xx) | 1929-05-18 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL32889D NL32889C (xx) | 1929-05-18 |
Country Status (3)
| Country | Link |
|---|---|
| DE (2) | DE624051C (xx) |
| FR (2) | FR696980A (xx) |
| NL (2) | NL51701C (xx) |
-
0
- NL NL32889D patent/NL32889C/xx active
- NL NL51701D patent/NL51701C/xx active
-
1929
- 1929-05-18 DE DES91776D patent/DE624051C/de not_active Expired
-
1930
- 1930-05-17 FR FR696980D patent/FR696980A/fr not_active Expired
- 1930-10-13 FR FR39382D patent/FR39382E/fr not_active Expired
- 1930-12-09 DE DE1930625010D patent/DE625010C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL32889C (xx) | |
| DE625010C (de) | 1936-02-01 |
| FR696980A (fr) | 1931-01-10 |
| FR39382E (fr) | 1931-10-19 |
| DE624051C (de) | 1936-01-15 |