FR21750E - Mèche à trous carrés - Google Patents

Mèche à trous carrés

Info

Publication number
FR21750E
FR21750E FR21750A FR21750DA FR21750E FR 21750 E FR21750 E FR 21750E FR 21750 A FR21750 A FR 21750A FR 21750D A FR21750D A FR 21750DA FR 21750 E FR21750 E FR 21750E
Authority
FR
France
Prior art keywords
drill bit
square hole
hole drill
square
bit
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
FR21750A
Other languages
English (en)
Inventor
Lucien-Emile Vasseur
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.)
LUCIEN-EMILE VASSEUR
Original Assignee
LUCIEN-EMILE VASSEUR
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 LUCIEN-EMILE VASSEUR filed Critical LUCIEN-EMILE VASSEUR
Application granted granted Critical
Publication of FR21750E publication Critical patent/FR21750E/fr
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
    • B23B51/0072—Drills for making non-circular holes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR21750A 1919-06-02 1919-09-26 Mèche à trous carrés Expired FR21750E (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR500286T 1919-06-02
FR21750T 1919-09-26

Publications (1)

Publication Number Publication Date
FR21750E true FR21750E (fr) 1921-01-12

Family

ID=62495347

Family Applications (2)

Application Number Title Priority Date Filing Date
FR500286A Expired FR500286A (fr) 1919-06-02 1919-06-02 Mèche à trous carrés
FR21750A Expired FR21750E (fr) 1919-06-02 1919-09-26 Mèche à trous carrés

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR500286A Expired FR500286A (fr) 1919-06-02 1919-06-02 Mèche à trous carrés

Country Status (1)

Country Link
FR (2) FR500286A (fr)

Also Published As

Publication number Publication date
FR500286A (fr) 1920-03-06

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