FR715242A - Method and apparatus for drilling holes - Google Patents

Method and apparatus for drilling holes

Info

Publication number
FR715242A
FR715242A FR715242DA FR715242A FR 715242 A FR715242 A FR 715242A FR 715242D A FR715242D A FR 715242DA FR 715242 A FR715242 A FR 715242A
Authority
FR
France
Prior art keywords
drilling holes
drilling
holes
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
Edwin-Dudley Haskell
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 FR715242A publication Critical patent/FR715242A/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
    • B23B51/104—Bits for countersinking with stops

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR715242D 1931-04-14 1931-04-14 Method and apparatus for drilling holes Expired FR715242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR715242T 1931-04-14

Publications (1)

Publication Number Publication Date
FR715242A true FR715242A (en) 1931-11-27

Family

ID=9088809

Family Applications (1)

Application Number Title Priority Date Filing Date
FR715242D Expired FR715242A (en) 1931-04-14 1931-04-14 Method and apparatus for drilling holes

Country Status (1)

Country Link
FR (1) FR715242A (en)

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