FR445876A - Development of sieves for mine lamps - Google Patents

Development of sieves for mine lamps

Info

Publication number
FR445876A
FR445876A FR445876DA FR445876A FR 445876 A FR445876 A FR 445876A FR 445876D A FR445876D A FR 445876DA FR 445876 A FR445876 A FR 445876A
Authority
FR
France
Prior art keywords
sieves
development
mine lamps
mine
lamps
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
Alexandre Leonard Tombelaine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR445876A publication Critical patent/FR445876A/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)
FR445876D 1912-07-08 1912-07-08 Development of sieves for mine lamps Expired FR445876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR445876T 1912-07-08

Publications (1)

Publication Number Publication Date
FR445876A true FR445876A (en) 1912-11-21

Family

ID=1486715

Family Applications (1)

Application Number Title Priority Date Filing Date
FR445876D Expired FR445876A (en) 1912-07-08 1912-07-08 Development of sieves for mine lamps

Country Status (1)

Country Link
FR (1) FR445876A (en)

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