GB1449565A - Apparatus for establishing the valuation data of gems parti cularly cut diamonds - Google Patents

Apparatus for establishing the valuation data of gems parti cularly cut diamonds

Info

Publication number
GB1449565A
GB1449565A GB1099674A GB1099674A GB1449565A GB 1449565 A GB1449565 A GB 1449565A GB 1099674 A GB1099674 A GB 1099674A GB 1099674 A GB1099674 A GB 1099674A GB 1449565 A GB1449565 A GB 1449565A
Authority
GB
United Kingdom
Prior art keywords
gems
establishing
valuation data
cut diamonds
parti cularly
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
GB1099674A
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.)
DIHACO DIAMANTEN HANDELS CO
Original Assignee
DIHACO DIAMANTEN HANDELS CO
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
Priority claimed from DE19732313783 external-priority patent/DE2313783C3/en
Application filed by DIHACO DIAMANTEN HANDELS CO filed Critical DIHACO DIAMANTEN HANDELS CO
Publication of GB1449565A publication Critical patent/GB1449565A/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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/87—Investigating jewels

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
GB1099674A 1973-03-20 1974-03-12 Apparatus for establishing the valuation data of gems parti cularly cut diamonds Expired GB1449565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732313783 DE2313783C3 (en) 1973-03-20 Device for determining the evaluation data of colored gemstones, in particular diamonds

Publications (1)

Publication Number Publication Date
GB1449565A true GB1449565A (en) 1976-09-15

Family

ID=5875313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1099674A Expired GB1449565A (en) 1973-03-20 1974-03-12 Apparatus for establishing the valuation data of gems parti cularly cut diamonds

Country Status (3)

Country Link
BE (1) BE812495A (en)
GB (1) GB1449565A (en)
IT (1) IT1007743B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119507A (en) * 1982-04-10 1983-11-16 Bruker Analytische Messtechnik Infrared spectrometer
GB2147413A (en) * 1983-09-28 1985-05-09 Sentrol Systems Ltd Infrared analysis
US5184732A (en) * 1985-12-20 1993-02-09 Gersan Establishment Shape sorting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119507A (en) * 1982-04-10 1983-11-16 Bruker Analytische Messtechnik Infrared spectrometer
GB2147413A (en) * 1983-09-28 1985-05-09 Sentrol Systems Ltd Infrared analysis
US5184732A (en) * 1985-12-20 1993-02-09 Gersan Establishment Shape sorting

Also Published As

Publication number Publication date
IT1007743B (en) 1976-10-30
DE2313783B2 (en) 1975-09-18
BE812495A (en) 1974-09-19
DE2313783A1 (en) 1974-10-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee