CH74658A - Bohrkopf - Google Patents

Bohrkopf

Info

Publication number
CH74658A
CH74658A CH74658A CH74658DA CH74658A CH 74658 A CH74658 A CH 74658A CH 74658 A CH74658 A CH 74658A CH 74658D A CH74658D A CH 74658DA CH 74658 A CH74658 A CH 74658A
Authority
CH
Switzerland
Prior art keywords
drill head
drill
head
Prior art date
Application number
CH74658A
Other languages
English (en)
Inventor
E Frey
Original Assignee
E Frey
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 E Frey filed Critical E Frey
Publication of CH74658A publication Critical patent/CH74658A/de

Links

CH74658A 1916-12-09 1916-12-09 Bohrkopf CH74658A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH74658T 1916-12-09

Publications (1)

Publication Number Publication Date
CH74658A true CH74658A (de) 1917-09-01

Family

ID=4325538

Family Applications (1)

Application Number Title Priority Date Filing Date
CH74658A CH74658A (de) 1916-12-09 1916-12-09 Bohrkopf

Country Status (1)

Country Link
CH (1) CH74658A (de)

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