FR669342A - Improvements to oval towers - Google Patents

Improvements to oval towers

Info

Publication number
FR669342A
FR669342A FR669342DA FR669342A FR 669342 A FR669342 A FR 669342A FR 669342D A FR669342D A FR 669342DA FR 669342 A FR669342 A FR 669342A
Authority
FR
France
Prior art keywords
towers
oval
oval 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
French (fr)
Inventor
Charles Wunenburger
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 FR669342A publication Critical patent/FR669342A/en
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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR669342D 1929-02-08 1929-02-08 Improvements to oval towers Expired FR669342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR669342T 1929-02-08

Publications (1)

Publication Number Publication Date
FR669342A true FR669342A (en) 1929-11-14

Family

ID=9015677

Family Applications (1)

Application Number Title Priority Date Filing Date
FR669342D Expired FR669342A (en) 1929-02-08 1929-02-08 Improvements to oval towers

Country Status (1)

Country Link
FR (1) FR669342A (en)

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