FR555925A - Perfectionnements aux tours - Google Patents

Perfectionnements aux tours

Info

Publication number
FR555925A
FR555925A FR555925DA FR555925A FR 555925 A FR555925 A FR 555925A FR 555925D A FR555925D A FR 555925DA FR 555925 A FR555925 A FR 555925A
Authority
FR
France
Prior art keywords
towers
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)
Inventor
William Buttrum
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 FR555925A publication Critical patent/FR555925A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
    • B23G1/04—Machines with one working-spindle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR555925D 1922-08-18 1922-08-18 Perfectionnements aux tours Expired FR555925A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR555925T 1922-08-18

Publications (1)

Publication Number Publication Date
FR555925A true FR555925A (fr) 1923-07-09

Family

ID=8939780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR555925D Expired FR555925A (fr) 1922-08-18 1922-08-18 Perfectionnements aux tours

Country Status (1)

Country Link
FR (1) FR555925A (fr)

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