CA677997A - Drill bit - Google Patents

Drill bit

Info

Publication number
CA677997A
CA677997A CA677997A CA677997DA CA677997A CA 677997 A CA677997 A CA 677997A CA 677997 A CA677997 A CA 677997A CA 677997D A CA677997D A CA 677997DA CA 677997 A CA677997 A CA 677997A
Authority
CA
Canada
Prior art keywords
drill bit
drill
bit
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
CA677997A
Inventor
D. Zimmerman Robert
F. Shipman George
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
Publication date
Application granted granted Critical
Publication of CA677997A publication Critical patent/CA677997A/en
Expired legal-status Critical Current

Links

CA677997A Drill bit Expired CA677997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA677997T

Publications (1)

Publication Number Publication Date
CA677997A true CA677997A (en) 1964-01-14

Family

ID=35979081

Family Applications (1)

Application Number Title Priority Date Filing Date
CA677997A Expired CA677997A (en) Drill bit

Country Status (1)

Country Link
CA (1) CA677997A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951761A (en) * 1988-06-18 1990-08-28 Hawera Probst Gmbh & Co. Rock drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951761A (en) * 1988-06-18 1990-08-28 Hawera Probst Gmbh & Co. Rock drill

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