JPS494311A - - Google Patents

Info

Publication number
JPS494311A
JPS494311A JP4427472A JP4427472A JPS494311A JP S494311 A JPS494311 A JP S494311A JP 4427472 A JP4427472 A JP 4427472A JP 4427472 A JP4427472 A JP 4427472A JP S494311 A JPS494311 A JP S494311A
Authority
JP
Japan
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.)
Granted
Application number
JP4427472A
Other languages
Japanese (ja)
Other versions
JPS5135767B2 (en]
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
Priority to JP47044274A priority Critical patent/JPS5135767B2/ja
Publication of JPS494311A publication Critical patent/JPS494311A/ja
Publication of JPS5135767B2 publication Critical patent/JPS5135767B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP47044274A 1972-05-04 1972-05-04 Expired JPS5135767B2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP47044274A JPS5135767B2 (en]) 1972-05-04 1972-05-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47044274A JPS5135767B2 (en]) 1972-05-04 1972-05-04

Publications (2)

Publication Number Publication Date
JPS494311A true JPS494311A (en]) 1974-01-16
JPS5135767B2 JPS5135767B2 (en]) 1976-10-05

Family

ID=12686916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47044274A Expired JPS5135767B2 (en]) 1972-05-04 1972-05-04

Country Status (1)

Country Link
JP (1) JPS5135767B2 (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4929385A (en) * 1989-06-07 1990-05-29 Gte Products Corporation Freon free process for preparing a niobium activated yttrium tantalate X-ray phosphor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01167345U (en]) * 1988-05-10 1989-11-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4929385A (en) * 1989-06-07 1990-05-29 Gte Products Corporation Freon free process for preparing a niobium activated yttrium tantalate X-ray phosphor

Also Published As

Publication number Publication date
JPS5135767B2 (en]) 1976-10-05

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