NL111C - Improvement to a drill bit - Google Patents

Improvement to a drill bit

Info

Publication number
NL111C
NL111C NL145A NL145A NL111C NL 111 C NL111 C NL 111C NL 145 A NL145 A NL 145A NL 145 A NL145 A NL 145A NL 111 C NL111 C NL 111C
Authority
NL
Netherlands
Prior art keywords
improvement
drill bit
drill
bit
Prior art date
Application number
NL145A
Other languages
Dutch (nl)
Original Assignee
Boer Hendrik
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 Boer Hendrik filed Critical Boer Hendrik
Application granted granted Critical
Publication of NL111C publication Critical patent/NL111C/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
NL145A 1911-09-07 1912-06-03 Improvement to a drill bit NL111C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191219332X 1911-09-07

Publications (1)

Publication Number Publication Date
NL111C true NL111C (en) 1914-01-15

Family

ID=32522557

Family Applications (1)

Application Number Title Priority Date Filing Date
NL145A NL111C (en) 1911-09-07 1912-06-03 Improvement to a drill bit

Country Status (3)

Country Link
FR (1) FR447443A (en)
GB (1) GB191219332A (en)
NL (1) NL111C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471038A (en) * 1946-10-29 1949-05-24 Jack & Heintz Prec Ind Inc Work centering attachment for metal turning machines
US2577556A (en) * 1950-02-04 1951-12-04 Macgregor Instr Company Cartridge syringe, including a cannula attaching chuck

Also Published As

Publication number Publication date
GB191219332A (en) 1913-03-20
FR447443A (en) 1913-01-04

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