BE744171A - Procede d'elargissement pour morsure en deux etapes pour ouvertures de masques d'ombre - Google Patents

Procede d'elargissement pour morsure en deux etapes pour ouvertures de masques d'ombre

Info

Publication number: BE744171A
Authority: BE; Belgium
Prior art keywords: shadow mask; enlargement process; mask openings; bite; step bite
Prior art date: 1969-08-15

Application number

Other languages

English (en)

Inventor

J J Frantzen

Original Assignee

Buckbee Mears 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.)

1969-08-15

Filing date

1970-01-08

Publication date

1970-06-15

1970-01-08 Application filed by Buckbee Mears Co filed Critical Buckbee Mears Co

1970-06-15 Publication of BE744171A publication Critical patent/BE744171A/fr

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
- H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Preparing Plates And Mask In Photomechanical Process (AREA)
Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Manufacture Or Reproduction Of Printing Formes (AREA)
ing And Chemical Polishing (AREA)

BE744171D 1969-08-15 1970-01-08 Procede d'elargissement pour morsure en deux etapes pour ouvertures de masques d'ombre BE744171A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US85045069A	1969-08-15	1969-08-15

Publications (1)

Publication Number	Publication Date
BE744171A true BE744171A (fr)	1970-06-15

Family

ID=25308134

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE744171D BE744171A (fr)	1969-08-15	1970-01-08	Procede d'elargissement pour morsure en deux etapes pour ouvertures de masques d'ombre

Country Status (7)

Country	Link
US (1)	US3609033A (fr)
JP (1)	JPS501870B1 (fr)
BE (1)	BE744171A (fr)
DE (1)	DE2005151A1 (fr)
FR (1)	FR2057648A5 (fr)
GB (1)	GB1252713A (fr)
NL (1)	NL7009574A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4926590B1 (fr) *	1970-09-03	1974-07-10
US3861798A (en) *	1972-05-22	1975-01-21	Hitachi Ltd	Mask for aligning patterns
US3929532A (en) *	1974-07-17	1975-12-30	Rca Corp	Method for etching apertured work piece
US3909311A (en) *	1974-08-05	1975-09-30	Hitachi Ltd	Shadow mask for use in color picture tube and method for fabricating same
JPS5947946U (ja) *	1982-09-21	1984-03-30	大同特殊鋼株式会社	多段ロ−タリスイツチ
US5348825A (en) *	1991-07-02	1994-09-20	Dai Nippon Printing Co., Ltd.	Method for manufacturing shadow mask and shadow mask manufactured by said method
EP0641009B1 (fr) *	1993-08-25	2000-01-05	Kabushiki Kaisha Toshiba	Tube à rayons cathodiques couleur et procédé de fabrication

1969
- 1969-08-15 US US850450A patent/US3609033A/en not_active Expired - Lifetime
1970
- 1970-01-08 BE BE744171D patent/BE744171A/fr unknown
- 1970-01-14 GB GB1252713D patent/GB1252713A/en not_active Expired
- 1970-02-05 DE DE19702005151 patent/DE2005151A1/de not_active Withdrawn
- 1970-03-17 FR FR7009564A patent/FR2057648A5/fr not_active Expired
- 1970-04-08 JP JP45029470A patent/JPS501870B1/ja active Pending
- 1970-06-29 NL NL7009574A patent/NL7009574A/xx not_active Application Discontinuation

Also Published As

Publication number	Publication date
GB1252713A (fr)	1971-11-10
US3609033A (en)	1971-09-28
DE2005151A1 (de)	1971-02-25
JPS501870B1 (fr)	1975-01-22
NL7009574A (fr)	1971-02-17
FR2057648A5 (fr)	1971-05-21

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