CA1028685A - Acier a forets utilise pour outils a percussion - Google Patents

Acier a forets utilise pour outils a percussion

Info

Publication number
CA1028685A
CA1028685A CA278,527A CA278527A CA1028685A CA 1028685 A CA1028685 A CA 1028685A CA 278527 A CA278527 A CA 278527A CA 1028685 A CA1028685 A CA 1028685A
Authority
CA
Canada
Prior art keywords
drill steel
percussive tools
percussive
tools
drill
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
CA278,527A
Other languages
English (en)
Inventor
John V. Bouyoucos
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.)
Hydroacoustics Inc
Original Assignee
Hydroacoustics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US477738A external-priority patent/US3926265A/en
Application filed by Hydroacoustics Inc filed Critical Hydroacoustics Inc
Priority to CA278,527A priority Critical patent/CA1028685A/fr
Application granted granted Critical
Publication of CA1028685A publication Critical patent/CA1028685A/fr
Expired legal-status Critical Current

Links

CA278,527A 1974-06-10 1977-05-16 Acier a forets utilise pour outils a percussion Expired CA1028685A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA278,527A CA1028685A (fr) 1974-06-10 1977-05-16 Acier a forets utilise pour outils a percussion

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US477738A US3926265A (en) 1974-06-10 1974-06-10 Drill steel for percussive drilling devices
CA229,009A CA1025432A (fr) 1974-06-10 1975-06-10 Acier a forets pour l'usage avec un outil a percussion
CA278,527A CA1028685A (fr) 1974-06-10 1977-05-16 Acier a forets utilise pour outils a percussion

Publications (1)

Publication Number Publication Date
CA1028685A true CA1028685A (fr) 1978-03-28

Family

ID=27163995

Family Applications (1)

Application Number Title Priority Date Filing Date
CA278,527A Expired CA1028685A (fr) 1974-06-10 1977-05-16 Acier a forets utilise pour outils a percussion

Country Status (1)

Country Link
CA (1) CA1028685A (fr)

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