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CH160224A - Drill head. - Google Patents

Drill head.

Info

Publication number
CH160224A
CH160224ACH160224DACH160224ACH 160224 ACH160224 ACH 160224ACH 160224D ACH160224D ACH 160224DACH 160224 ACH160224 ACH 160224A
Authority
CH
Switzerland
Prior art keywords
drill head
drill
head
Prior art date
Application number
Other languages
German (de)
Inventor
Edna Conwell Laura
Original Assignee
Edna Conwell Laura
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 Edna Conwell LaurafiledCriticalEdna Conwell Laura
Publication of CH160224ApublicationCriticalpatent/CH160224A/en

Links

CH160224D1931-12-171932-03-24 Drill head.CH160224A (en)

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
US160224XA1931-12-171931-12-17

Publications (1)

Publication NumberPublication Date
CH160224Atrue CH160224A (en)1933-02-28

Family

ID=21774952

Family Applications (1)

Application NumberTitlePriority DateFiling Date
CH160224DCH160224A (en)1931-12-171932-03-24 Drill head.

Country Status (1)

CountryLink
CH (1)CH160224A (en)

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