FR848687A - - Google Patents
Info
- Publication number
- FR848687A FR848687A FR848687DA FR848687A FR 848687 A FR848687 A FR 848687A FR 848687D A FR848687D A FR 848687DA FR 848687 A FR848687 A FR 848687A
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/20—Audible signals, e.g. detonator audible signalling
- B61L5/203—Detonators; Track mounting means; Composition of the detonative product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR848687A true FR848687A (xx) | 1939-11-03 |
Family
ID=1554559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR848687D Expired FR848687A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR848687A (xx) |
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0
- FR FR848687D patent/FR848687A/fr not_active Expired