CA502944A - Appareil d'exploitation miniere - Google Patents

Appareil d'exploitation miniere

Info

Publication number: CA502944A
Authority: CA; Canada
Prior art keywords: mining apparatus; mining
Prior art date: 1954-05-25
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

CA502944A

Other languages

Inventor

H. Vanderzee Harry

P. Baldwin Clyde

Original Assignee

Joy Manufacturing Co

Publication date

1954-05-25

1954-05-25 Application granted granted Critical

1954-05-25 Publication of CA502944A publication Critical patent/CA502944A/fr

Status Expired legal-status Critical Current

CA502944A Appareil d'exploitation miniere Expired CA502944A (fr)

Application Number	Priority Date	Filing Date	Title
CA502944T

Publication Number	Publication Date
CA502944A true CA502944A (fr)	1954-05-25

Application Number	Title	Priority Date	Filing Date
CA502944A Expired CA502944A (fr)			Appareil d'exploitation miniere

Country	Link
CA (1)	CA502944A (fr)

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