FR521987A - Square and hand pieces, portable for dental drillers - Google Patents

Square and hand pieces, portable for dental drillers

Info

Publication number
FR521987A
FR521987A FR521987A FR521987DA FR521987A FR 521987 A FR521987 A FR 521987A FR 521987 A FR521987 A FR 521987A FR 521987D A FR521987D A FR 521987DA FR 521987 A FR521987 A FR 521987A
Authority
FR
France
Prior art keywords
drillers
dental
portable
square
hand pieces
Prior art date
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.)
Expired
Application number
FR521987A
Other languages
French (fr)
Inventor
Paul Kuhn
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR521987A publication Critical patent/FR521987A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
    • A61C1/181—Bearings or lubricating arrangements, e.g. air-cushion bearings

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
FR521987A 1920-01-16 1920-08-05 Square and hand pieces, portable for dental drillers Expired FR521987A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE333494T 1920-01-16
GB17977/20A GB161878A (en) 1920-01-16 1920-06-30 Improvements in or relating to dental instruments
FR521987T 1920-08-05
US407556A US1406263A (en) 1920-01-16 1920-09-01 Angle plate and handle for dentists' boring machines

Publications (1)

Publication Number Publication Date
FR521987A true FR521987A (en) 1921-07-22

Family

ID=40361415

Family Applications (1)

Application Number Title Priority Date Filing Date
FR521987A Expired FR521987A (en) 1920-01-16 1920-08-05 Square and hand pieces, portable for dental drillers

Country Status (4)

Country Link
US (1) US1406263A (en)
DE (1) DE333494C (en)
FR (1) FR521987A (en)
GB (1) GB161878A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6203322B1 (en) 1999-04-15 2001-03-20 David Kraenzle Dental prophylaxis angle

Also Published As

Publication number Publication date
DE333494C (en) 1921-02-28
US1406263A (en) 1922-02-14
GB161878A (en) 1921-04-21

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