FR487904A - Improvements made to tool holders - Google Patents

Improvements made to tool holders

Info

Publication number
FR487904A
FR487904A FR487904A FR487904DA FR487904A FR 487904 A FR487904 A FR 487904A FR 487904 A FR487904 A FR 487904A FR 487904D A FR487904D A FR 487904DA FR 487904 A FR487904 A FR 487904A
Authority
FR
France
Prior art keywords
improvements made
tool holders
holders
tool
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
FR487904A
Other languages
French (fr)
Inventor
Jere Charles Dufresne
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.)
JERE CHARLES DUFRESNE
Original Assignee
JERE CHARLES DUFRESNE
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 JERE CHARLES DUFRESNE filed Critical JERE CHARLES DUFRESNE
Application granted granted Critical
Publication of FR487904A publication Critical patent/FR487904A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR487904A 1917-11-02 1917-12-08 Improvements made to tool holders Expired FR487904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US487904XA 1917-11-02 1917-11-02

Publications (1)

Publication Number Publication Date
FR487904A true FR487904A (en) 1918-08-07

Family

ID=1524328

Family Applications (1)

Application Number Title Priority Date Filing Date
FR487904A Expired FR487904A (en) 1917-11-02 1917-12-08 Improvements made to tool holders

Country Status (1)

Country Link
FR (1) FR487904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1224119B (en) * 1960-08-04 1966-09-01 Beaver Tool And Engineering Co Tool chucks, e.g. B. drill chucks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1224119B (en) * 1960-08-04 1966-09-01 Beaver Tool And Engineering Co Tool chucks, e.g. B. drill chucks

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