FR437212A - Perfectionnements aux machines à fabriquer des corps annulaires - Google Patents

Perfectionnements aux machines à fabriquer des corps annulaires

Info

Publication number
FR437212A
FR437212A FR437212DA FR437212A FR 437212 A FR437212 A FR 437212A FR 437212D A FR437212D A FR 437212DA FR 437212 A FR437212 A FR 437212A
Authority
FR
France
Prior art keywords
machines
annular bodies
manufacturing annular
manufacturing
bodies
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
Charles Collins Davis
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR437212A publication Critical patent/FR437212A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14—Dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR437212D 1911-12-05 1911-12-05 Perfectionnements aux machines à fabriquer des corps annulaires Expired FR437212A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR437212T 1911-12-05

Publications (1)

Publication Number Publication Date
FR437212A true FR437212A (fr) 1912-04-16

Family

ID=1478839

Family Applications (1)

Application Number Title Priority Date Filing Date
FR437212D Expired FR437212A (fr) 1911-12-05 1911-12-05 Perfectionnements aux machines à fabriquer des corps annulaires

Country Status (1)

Country Link
FR (1) FR437212A (fr)

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