BG20172A1 - - Google Patents
Info
- Publication number
- BG20172A1 BG20172A1 BG21792A BG2179272A BG20172A1 BG 20172 A1 BG20172 A1 BG 20172A1 BG 21792 A BG21792 A BG 21792A BG 2179272 A BG2179272 A BG 2179272A BG 20172 A1 BG20172 A1 BG 20172A1
- Authority
- BG
- Bulgaria
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD15885171 | 1971-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BG20172A1 true BG20172A1 (en:Method) | 1975-11-05 |
Family
ID=5484575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG21792A BG20172A1 (en:Method) | 1971-11-10 | 1972-11-04 |
Country Status (2)
| Country | Link |
|---|---|
| BG (1) | BG20172A1 (en:Method) |
| RO (1) | RO60034A (en:Method) |
-
1972
- 1972-11-04 BG BG21792A patent/BG20172A1/xx unknown
- 1972-11-10 RO RO72782A patent/RO60034A/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO60034A (en:Method) | 1976-05-15 |