FR376631A - Method and device for making pipes with compressed bars - Google Patents

Method and device for making pipes with compressed bars

Info

Publication number
FR376631A
FR376631A FR376631DA FR376631A FR 376631 A FR376631 A FR 376631A FR 376631D A FR376631D A FR 376631DA FR 376631 A FR376631 A FR 376631A
Authority
FR
France
Prior art keywords
making pipes
compressed bars
bars
compressed
pipes
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
Albert Liebetrau
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 FR376631A publication Critical patent/FR376631A/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
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/04—Mandrels
FR376631D 1907-04-12 1907-04-12 Method and device for making pipes with compressed bars Expired FR376631A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR376631T 1907-04-12

Publications (1)

Publication Number Publication Date
FR376631A true FR376631A (en) 1907-08-14

Family

ID=1423115

Family Applications (1)

Application Number Title Priority Date Filing Date
FR376631D Expired FR376631A (en) 1907-04-12 1907-04-12 Method and device for making pipes with compressed bars

Country Status (1)

Country Link
FR (1) FR376631A (en)

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