FR1009251A - Procédé de modification permanente de la teinte des pierres précieuses - Google Patents

Procédé de modification permanente de la teinte des pierres précieuses

Info

Publication number
FR1009251A
FR1009251A FR1009251DA FR1009251A FR 1009251 A FR1009251 A FR 1009251A FR 1009251D A FR1009251D A FR 1009251DA FR 1009251 A FR1009251 A FR 1009251A
Authority
FR
France
Prior art keywords
color
precious stones
permanent modification
permanent
modification
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
Maurice-Elie Nahmias
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 filed Critical
Application granted granted Critical
Publication of FR1009251A publication Critical patent/FR1009251A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
    • G21G1/00—Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation or particle bombardment, e.g. producing radioactive isotopes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
FR1009251D 1948-05-31 1948-05-31 Procédé de modification permanente de la teinte des pierres précieuses Expired FR1009251A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1009251T 1948-05-31

Publications (1)

Publication Number Publication Date
FR1009251A true FR1009251A (fr) 1952-05-27

Family

ID=9568003

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1009251D Expired FR1009251A (fr) 1948-05-31 1948-05-31 Procédé de modification permanente de la teinte des pierres précieuses

Country Status (4)

Country Link
BE (1) BE489221A (fr)
FR (1) FR1009251A (fr)
GB (1) GB660719A (fr)
NL (1) NL81096C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996763A (en) * 1956-01-31 1961-08-22 Gen Electric Diamond material
US3181933A (en) * 1961-02-28 1965-05-04 Gen Electric Radioactive diamond and process for the preparation thereof
FR2460119A1 (fr) * 1979-06-29 1981-01-23 Inst Sinteza Mineralnogo Syr Procede de changement de coloration de pierres dures

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945793A (en) * 1952-09-22 1960-07-19 Dugdale Ronald Arthur Process for coloring diamonds
BE537440A (fr) * 1954-04-19
US3012142A (en) * 1959-03-30 1961-12-05 Howard W Etzel High temperature dosimeter
US3075906A (en) * 1960-06-15 1963-01-29 Chow Ken-Tang Process for irradiating pearls and product resulting therefrom
US3293190A (en) * 1963-11-20 1966-12-20 Exxon Research Engineering Co Method for modifying the electrical and catalytic properties of a supported catalyst
ZA797004B (en) * 1979-01-17 1980-11-26 De Beers Ind Diamond Diamond treatment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996763A (en) * 1956-01-31 1961-08-22 Gen Electric Diamond material
US3181933A (en) * 1961-02-28 1965-05-04 Gen Electric Radioactive diamond and process for the preparation thereof
FR2460119A1 (fr) * 1979-06-29 1981-01-23 Inst Sinteza Mineralnogo Syr Procede de changement de coloration de pierres dures

Also Published As

Publication number Publication date
BE489221A (fr)
GB660719A (en) 1951-11-14
NL81096C (fr)

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