FR668849A - Barre de havage - Google Patents

Barre de havage

Info

Publication number
FR668849A
FR668849A FR668849DA FR668849A FR 668849 A FR668849 A FR 668849A FR 668849D A FR668849D A FR 668849DA FR 668849 A FR668849 A FR 668849A
Authority
FR
France
Prior art keywords
cutting bar
cutting
bar
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)
French (fr)
Inventor
Pierre-Eugene Leroux
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 FR668849A publication Critical patent/FR668849A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E21C25/10—Rods; Drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR668849D 1928-02-14 1929-02-01 Barre de havage Expired FR668849A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE668849X 1928-02-14

Publications (1)

Publication Number Publication Date
FR668849A true FR668849A (fr) 1929-11-07

Family

ID=3877387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668849D Expired FR668849A (fr) 1928-02-14 1929-02-01 Barre de havage

Country Status (2)

Country Link
BE (1) BE348858A (ko)
FR (1) FR668849A (ko)

Also Published As

Publication number Publication date
BE348858A (ko)

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