FR618898A - Improvements in safety lamps - Google Patents

Improvements in safety lamps

Info

Publication number
FR618898A
FR618898A FR618898DA FR618898A FR 618898 A FR618898 A FR 618898A FR 618898D A FR618898D A FR 618898DA FR 618898 A FR618898 A FR 618898A
Authority
FR
France
Prior art keywords
safety lamps
lamps
safety
Prior art date
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)
Inventor
Hans Fleissner
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR618898A publication Critical patent/FR618898A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L23/00—Non-electric hand-lamps for miners

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR618898D 1925-07-13 1926-07-13 Improvements in safety lamps Expired FR618898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE618898X 1925-07-13

Publications (1)

Publication Number Publication Date
FR618898A true FR618898A (en) 1927-03-22

Family

ID=6577253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR618898D Expired FR618898A (en) 1925-07-13 1926-07-13 Improvements in safety lamps

Country Status (2)

Country Link
BE (1) BE618898A (en)
FR (1) FR618898A (en)

Also Published As

Publication number Publication date
BE618898A (en) 1962-10-01

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