CA170830A - Appareil d'essai de forets - Google Patents

Appareil d'essai de forets

Info

Publication number
CA170830A
CA170830A CA000170830A CA170830DA CA170830A CA 170830 A CA170830 A CA 170830A CA 000170830 A CA000170830 A CA 000170830A CA 170830D A CA170830D A CA 170830DA CA 170830 A CA170830 A CA 170830A
Authority
CA
Canada
Prior art keywords
testing apparatus
drill testing
drill
testing
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
CA000170830A
Other languages
English (en)
Inventor
James Compton
Earl H. Obertop
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA170830A publication Critical patent/CA170830A/fr
Expired legal-status Critical Current

Links

CA000170830A 1916-04-15 1916-04-15 Appareil d'essai de forets Expired CA170830A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA170830T 1916-04-15

Publications (1)

Publication Number Publication Date
CA170830A true CA170830A (fr) 1916-07-18

Family

ID=45290492

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000170830A Expired CA170830A (fr) 1916-04-15 1916-04-15 Appareil d'essai de forets

Country Status (1)

Country Link
CA (1) CA170830A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5277055A (en) * 1991-08-30 1994-01-11 Consolidated Edison Company Of New York, Inc. Impact and impact-rotary tool testing apparatus using rotary speed and impact energy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5277055A (en) * 1991-08-30 1994-01-11 Consolidated Edison Company Of New York, Inc. Impact and impact-rotary tool testing apparatus using rotary speed and impact energy

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