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FR906315A - Vacuum valve for pump-operated devices - Google Patents

Vacuum valve for pump-operated devices

Info

Publication number
FR906315A
FR906315A FR906315DA FR906315A FR 906315 A FR906315 A FR 906315A FR 906315D A FR906315D A FR 906315DA FR 906315 A FR906315 A FR 906315A
Authority
FR
France
Prior art keywords
pump
vacuum valve
operated devices
operated
devices
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.)
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Original Assignee
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
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 Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH filed Critical Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Application granted granted Critical
Publication of FR906315A publication Critical patent/FR906315A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
FR906315D 1943-07-05 1944-08-05 Vacuum valve for pump-operated devices Expired FR906315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE906315X 1943-07-05

Publications (1)

Publication Number Publication Date
FR906315A true FR906315A (en) 1945-12-31

Family

ID=6862681

Family Applications (1)

Application Number Title Priority Date Filing Date
FR906315D Expired FR906315A (en) 1943-07-05 1944-08-05 Vacuum valve for pump-operated devices

Country Status (1)

Country Link
FR (1) FR906315A (en)

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