FR416300A - Perforatrices - Google Patents

Perforatrices

Info

Publication number
FR416300A
FR416300A FR416300DA FR416300A FR 416300 A FR416300 A FR 416300A FR 416300D A FR416300D A FR 416300DA FR 416300 A FR416300 A FR 416300A
Authority
FR
France
Prior art keywords
hole punches
punches
hole
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
English (en)
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 FR416300A publication Critical patent/FR416300A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/106—Making by using boring or cutting machines with percussive tools, e.g. pick-hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR416300D 1910-05-24 1910-05-24 Perforatrices Expired FR416300A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR416300T 1910-05-24

Publications (1)

Publication Number Publication Date
FR416300A true FR416300A (fr) 1910-10-15

Family

ID=1459812

Family Applications (1)

Application Number Title Priority Date Filing Date
FR416300D Expired FR416300A (fr) 1910-05-24 1910-05-24 Perforatrices

Country Status (1)

Country Link
FR (1) FR416300A (fr)

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