FR667344A - Improvements to drill bits - Google Patents

Improvements to drill bits

Info

Publication number
FR667344A
FR667344A FR667344DA FR667344A FR 667344 A FR667344 A FR 667344A FR 667344D A FR667344D A FR 667344DA FR 667344 A FR667344 A FR 667344A
Authority
FR
France
Prior art keywords
drill bits
drill
bits
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
Gaston Mouturat-Deguy
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 FR667344A publication Critical patent/FR667344A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/108—Bits for countersinking having a centering drill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR667344D 1928-04-13 1928-04-13 Improvements to drill bits Expired FR667344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR667344T 1928-04-13

Publications (1)

Publication Number Publication Date
FR667344A true FR667344A (en) 1929-10-15

Family

ID=9014344

Family Applications (1)

Application Number Title Priority Date Filing Date
FR667344D Expired FR667344A (en) 1928-04-13 1928-04-13 Improvements to drill bits

Country Status (1)

Country Link
FR (1) FR667344A (en)

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