CA397389A - Appareil electrique a souder la couture des tubes - Google Patents

Appareil electrique a souder la couture des tubes

Info

Publication number
CA397389A
CA397389A CA397389A CA397389DA CA397389A CA 397389 A CA397389 A CA 397389A CA 397389 A CA397389 A CA 397389A CA 397389D A CA397389D A CA 397389DA CA 397389 A CA397389 A CA 397389A
Authority
CA
Canada
Prior art keywords
welding apparatus
seam welding
electrical tubing
tubing seam
electrical
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
CA397389A
Other languages
English (en)
Inventor
L. Sessions Frank
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
Publication date
Application granted granted Critical
Publication of CA397389A publication Critical patent/CA397389A/fr
Expired legal-status Critical Current

Links

CA397389A Appareil electrique a souder la couture des tubes Expired CA397389A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA397389T

Publications (1)

Publication Number Publication Date
CA397389A true CA397389A (fr) 1941-06-24

Family

ID=35407907

Family Applications (1)

Application Number Title Priority Date Filing Date
CA397389A Expired CA397389A (fr) Appareil electrique a souder la couture des tubes

Country Status (1)

Country Link
CA (1) CA397389A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110133097A (zh) * 2019-06-12 2019-08-16 清华大学 一种埋地管道环焊缝检测装置及检测方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110133097A (zh) * 2019-06-12 2019-08-16 清华大学 一种埋地管道环焊缝检测装置及检测方法
CN110133097B (zh) * 2019-06-12 2024-06-04 清华大学 一种埋地管道环焊缝检测装置及检测方法

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