FR23820E - Improvements made to metal tubes - Google Patents

Improvements made to metal tubes

Info

Publication number
FR23820E
FR23820E FR23820A FR23820DA FR23820E FR 23820 E FR23820 E FR 23820E FR 23820 A FR23820 A FR 23820A FR 23820D A FR23820D A FR 23820DA FR 23820 E FR23820 E FR 23820E
Authority
FR
France
Prior art keywords
improvements made
metal tubes
tubes
metal
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
FR23820A
Other languages
French (fr)
Inventor
Pierre-Casimir-Louis Claverie
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.)
PIERRE-CASIMIR-LOUIS CLAVERIE
Original Assignee
PIERRE-CASIMIR-LOUIS CLAVERIE
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 PIERRE-CASIMIR-LOUIS CLAVERIE filed Critical PIERRE-CASIMIR-LOUIS CLAVERIE
Application granted granted Critical
Publication of FR23820E publication Critical patent/FR23820E/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/151—Making tubes with multiple passages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR23820A 1917-09-24 1917-09-24 Improvements made to metal tubes Expired FR23820E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR23820T 1917-09-24

Publications (1)

Publication Number Publication Date
FR23820E true FR23820E (en) 1921-12-30

Family

ID=8662517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR23820A Expired FR23820E (en) 1917-09-24 1917-09-24 Improvements made to metal tubes

Country Status (1)

Country Link
FR (1) FR23820E (en)

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