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.)
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.)
CRUCHANDEU FRANCOIS
Original Assignee
CRUCHANDEU FRANCOIS
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Filing date
Publication date
Application filed by CRUCHANDEU FRANCOISfiledCriticalCRUCHANDEU FRANCOIS
Priority to FR7406059ApriorityCriticalpatent/FR2261828A1/fr
Publication of FR2261828A1publicationCriticalpatent/FR2261828A1/fr
Application grantedgrantedCritical
Publication of FR2261828B3publicationCriticalpatent/FR2261828B3/fr
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
B23B49/02—Boring templates or bushings
B23B49/023—Bushings and their connection to the template
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Drilling And Boring
(AREA)
FR7406059A1974-02-221974-02-22Attachment to drilling gun - is rotating ring with teeth projecting into bit thread to remove swarf
GrantedFR2261828A1
(en)
