FR987628A - Insulating plaster material - Google Patents

Insulating plaster material

Info

Publication number
FR987628A
FR987628A FR987628DA FR987628A FR 987628 A FR987628 A FR 987628A FR 987628D A FR987628D A FR 987628DA FR 987628 A FR987628 A FR 987628A
Authority
FR
France
Prior art keywords
plaster material
insulating plaster
insulating
plaster
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
French (fr)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR987628A publication Critical patent/FR987628A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/02—Electron-emitting electrodes; Cathodes
    • H01J19/04—Thermionic cathodes
    • H01J19/14—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J19/16—Heaters
FR987628D 1948-06-19 1949-05-30 Insulating plaster material Expired FR987628A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US987628XA 1948-06-19 1948-06-19

Publications (1)

Publication Number Publication Date
FR987628A true FR987628A (en) 1951-08-16

Family

ID=22270774

Family Applications (1)

Application Number Title Priority Date Filing Date
FR987628D Expired FR987628A (en) 1948-06-19 1949-05-30 Insulating plaster material

Country Status (1)

Country Link
FR (1) FR987628A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722491A (en) * 1951-11-06 1955-11-01 Raytheon Mfg Co Insulating coating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722491A (en) * 1951-11-06 1955-11-01 Raytheon Mfg Co Insulating coating

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