CA523304A - Chalumeau a percer le roc - Google Patents

Chalumeau a percer le roc

Info

Publication number
CA523304A
CA523304A CA523304A CA523304DA CA523304A CA 523304 A CA523304 A CA 523304A CA 523304 A CA523304 A CA 523304A CA 523304D A CA523304D A CA 523304DA CA 523304 A CA523304 A CA 523304A
Authority
CA
Canada
Prior art keywords
blowpipe
rock piercing
rock
piercing blowpipe
piercing
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
CA523304A
Other languages
English (en)
Inventor
Ray O. Wyland, Jr.
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.)
Union Carbide Corp
Original Assignee
Union Carbide and Carbon Corp
Publication date
Application granted granted Critical
Publication of CA523304A publication Critical patent/CA523304A/fr
Expired legal-status Critical Current

Links

CA523304A Chalumeau a percer le roc Expired CA523304A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA523304T

Publications (1)

Publication Number Publication Date
CA523304A true CA523304A (fr) 1956-03-27

Family

ID=35676537

Family Applications (1)

Application Number Title Priority Date Filing Date
CA523304A Expired CA523304A (fr) Chalumeau a percer le roc

Country Status (1)

Country Link
CA (1) CA523304A (fr)

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