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
Application number
Other languages
French (fr)
Publication date
Application granted granted Critical
Publication of FR848687A publication Critical patent/FR848687A/fr
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/20Audible signals, e.g. detonator audible signalling
    • B61L5/203Detonators; Track mounting means; Composition of the detonative product

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR848687D Expired FR848687A (xx)

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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