CA556236A - Short interval delay blasting device - Google Patents

Short interval delay blasting device

Info

Publication number
CA556236A
CA556236A CA556236A CA556236DA CA556236A CA 556236 A CA556236 A CA 556236A CA 556236 A CA556236 A CA 556236A CA 556236D A CA556236D A CA 556236DA CA 556236 A CA556236 A CA 556236A
Authority
CA
Canada
Prior art keywords
short interval
blasting device
interval delay
delay blasting
short
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
CA556236A
Other languages
French (fr)
Inventor
Francis H. G. Mccaffrey
William E. Hamilton
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.)
PPG Architectural Coatings Canada Inc
Original Assignee
Canadian Industries Ltd
Publication date
Application granted granted Critical
Publication of CA556236A publication Critical patent/CA556236A/en
Expired legal-status Critical Current

Links

CA556236A Short interval delay blasting device Expired CA556236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA556236T

Publications (1)

Publication Number Publication Date
CA556236A true CA556236A (en) 1958-04-22

Family

ID=35722643

Family Applications (1)

Application Number Title Priority Date Filing Date
CA556236A Expired CA556236A (en) Short interval delay blasting device

Country Status (1)

Country Link
CA (1) CA556236A (en)

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