CA437650A - Dispositif de protection pour circuit a miner - Google Patents

Dispositif de protection pour circuit a miner

Info

Publication number: CA437650A
Authority: CA; Canada
Prior art keywords: protective device; blasting circuit; blasting; circuit; protective
Prior art date: 1946-10-29
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

CA437650A

Other languages

English (en)

Inventor

Emery Hartline Ralph

Louis Lubelsky Benjamin

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.)

MSA Safety Inc

Original Assignee

Mine Safety Appliances Co

Publication date

1946-10-29

1946-10-29 Application granted granted Critical

1946-10-29 Publication of CA437650A publication Critical patent/CA437650A/fr

Status Expired legal-status Critical Current

Links

238000005422 blasting Methods 0.000 title 1
230000001681 protective effect Effects 0.000 title 1

CA437650A Dispositif de protection pour circuit a miner Expired CA437650A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA437650T

Publications (1)

Publication Number	Publication Date
CA437650A true CA437650A (fr)	1946-10-29

Family

ID=35552885

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA437650A Expired CA437650A (fr)			Dispositif de protection pour circuit a miner

Country Status (1)

Country	Link
CA (1)	CA437650A (fr)

0
- CA CA437650A patent/CA437650A/fr not_active Expired

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