FR427427A - Instrument for gemstone inspection - Google Patents

Instrument for gemstone inspection

Info

Publication number
FR427427A
FR427427A FR427427A FR427427DA FR427427A FR 427427 A FR427427 A FR 427427A FR 427427 A FR427427 A FR 427427A FR 427427D A FR427427D A FR 427427DA FR 427427 A FR427427 A FR 427427A
Authority
FR
France
Prior art keywords
instrument
gemstone
inspection
gemstone inspection
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
FR427427A
Other languages
French (fr)
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 FR427427A publication Critical patent/FR427427A/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)
  • Lenses (AREA)
  • Eyeglasses (AREA)
  • Microscoopes, Condenser (AREA)
  • Adornments (AREA)
FR427427A 1910-04-13 1911-03-16 Instrument for gemstone inspection Expired FR427427A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR427427A true FR427427A (en) 1911-08-03

Family

ID=32479361

Family Applications (1)

Application Number Title Priority Date Filing Date
FR427427A Expired FR427427A (en) 1910-04-13 1911-03-16 Instrument for gemstone inspection

Country Status (3)

Country Link
DE (1) DE230283C (en)
FR (1) FR427427A (en)
GB (1) GB191105363A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705460A1 (en) * 1993-05-13 1994-11-25 Atalay Han Compact laser-beam portable gemmological apparatus making it possible, in particular, to appraise pierced or unpierced pearls by luminescence

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705460A1 (en) * 1993-05-13 1994-11-25 Atalay Han Compact laser-beam portable gemmological apparatus making it possible, in particular, to appraise pierced or unpierced pearls by luminescence

Also Published As

Publication number Publication date
GB191105363A (en) 1911-05-25
DE230283C (en)

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