ATE47547T1 - DRILL HEAD. - Google Patents

DRILL HEAD.

Info

Publication number
ATE47547T1
ATE47547T1 AT84440077T AT84440077T ATE47547T1 AT E47547 T1 ATE47547 T1 AT E47547T1 AT 84440077 T AT84440077 T AT 84440077T AT 84440077 T AT84440077 T AT 84440077T AT E47547 T1 ATE47547 T1 AT E47547T1
Authority
AT
Austria
Prior art keywords
drill head
drill
head
Prior art date
Application number
AT84440077T
Other languages
German (de)
Inventor
Emile Pfalzgraf
Original Assignee
Emile Pfalzgraf
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 FR8406903A external-priority patent/FR2563132B1/en
Priority claimed from FR8414315A external-priority patent/FR2570008B2/en
Application filed by Emile Pfalzgraf filed Critical Emile Pfalzgraf
Application granted granted Critical
Publication of ATE47547T1 publication Critical patent/ATE47547T1/en

Links

AT84440077T 1984-04-24 1984-12-28 DRILL HEAD. ATE47547T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8406903A FR2563132B1 (en) 1984-04-24 1984-04-24 BORE HEAD
FR8414315A FR2570008B2 (en) 1984-04-24 1984-09-13 BORE HEAD
EP84440077A EP0163796B1 (en) 1984-04-24 1984-12-28 Boring head

Publications (1)

Publication Number Publication Date
ATE47547T1 true ATE47547T1 (en) 1989-11-15

Family

ID=27227426

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84440077T ATE47547T1 (en) 1984-04-24 1984-12-28 DRILL HEAD.

Country Status (1)

Country Link
AT (1) ATE47547T1 (en)

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEIH Change in the person of patent owner
EELA Cancelled due to lapse of time