GB191105363A - Improvements in Apparatus for Facilitating the Examination of Precious Stones and the like. - Google Patents

Improvements in Apparatus for Facilitating the Examination of Precious Stones and the like.

Info

Publication number
GB191105363A
GB191105363A GB191105363DA GB191105363A GB 191105363 A GB191105363 A GB 191105363A GB 191105363D A GB191105363D A GB 191105363DA GB 191105363 A GB191105363 A GB 191105363A
Authority
GB
United Kingdom
Prior art keywords
ring
claws
examination
facilitating
precious stones
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
Other languages
English (en)
Inventor
Friedrich Sale
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 GB191105363A publication Critical patent/GB191105363A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/389—Precious stones; Pearls

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Adornments (AREA)
  • Lenses (AREA)
  • Eyeglasses (AREA)
  • Microscoopes, Condenser (AREA)
GB191105363D 1910-04-13 1911-03-03 Improvements in Apparatus for Facilitating the Examination of Precious Stones and the like. Expired GB191105363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE427427X 1910-04-13

Publications (1)

Publication Number Publication Date
GB191105363A true GB191105363A (en) 1911-05-25

Family

ID=32479361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191105363D Expired GB191105363A (en) 1910-04-13 1911-03-03 Improvements in Apparatus for Facilitating the Examination of Precious Stones and the like.

Country Status (3)

Country Link
DE (1) DE230283C (https=)
FR (1) FR427427A (https=)
GB (1) GB191105363A (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705460B1 (fr) * 1993-05-13 1995-07-13 Atalay Han Appareil gemmologique portable compact à rayon laser permettant notamment l'expertise par luminescence des perles perçées ou non.

Also Published As

Publication number Publication date
FR427427A (fr) 1911-08-03
DE230283C (https=)

Similar Documents

Publication Publication Date Title
US1308011A (en) Composing the partnership of s
GB191105363A (en) Improvements in Apparatus for Facilitating the Examination of Precious Stones and the like.
CH382452A (fr) Pointe à tracer
US2450984A (en) Gem grinding and polishing tool
US1415118A (en) Diamond grinder
Maguire et al. Pollen grains of some American Olacaceae
CH307045A (fr) Montre-bracelet mystérieuse.
US1001991A (en) Apparatus for the examination of precious stones.
US1584519A (en) Support for work-magnifying lenses
CN109619779B (zh) 一种宝石加工圆台治具
CN109567332B (zh) 一种宝石加工圆棒治具及方法
US1122247A (en) Lens-cutting instrument.
GB719989A (en) Improvements in spring mounted spindle bearings for fine-mechanical apparatus and the like
US2274520A (en) Lapidary's tool
GB151280A (en) Device for attaching photographic apparatus or the like to stands
GB253093A (en) Improvements in machines for cutting fancy watch glasses
US2618967A (en) Watchmaker's poising tool
GB553698A (en) Improvements in and relating to abrasive wheels
Tolansky Some folklore and history of diamond
SU7859A1 (ru) Машина дл шлифовани ювелирных камней
GB554875A (en) A new or improved diamond holder for use in profiling grinding wheels and for like purposes
GB827709A (en) Measuring apparatus for use in the game of bowls
GB564632A (en) Dop for cutting, grinding or polishing the facets of the bezel part of a gem
USD152355S (en) Combined wrist watch and holder ssrap therefor
GB608383A (en) Articulator for artificial dentures