NL186223C - PROCEDURE FOR PREPARING UNSATURATED CARBONIC ACIDS AND THE CATALYST PARTICLES TO BE USED HEREIN. - Google Patents

PROCEDURE FOR PREPARING UNSATURATED CARBONIC ACIDS AND THE CATALYST PARTICLES TO BE USED HEREIN.

Info

Publication number
NL186223C
NL186223C NLAANVRAGE7602710,A NL186223DA NL186223C NL 186223 C NL186223 C NL 186223C NL 186223D A NL186223D A NL 186223DA NL 186223 C NL186223 C NL 186223C
Authority
NL
Netherlands
Prior art keywords
procedure
catalyst particles
carbonic acids
preparing unsaturated
unsaturated carbonic
Prior art date
Application number
NLAANVRAGE7602710,A
Other languages
Dutch (nl)
Original Assignee
Mitsubishi Rayon 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.)
Publication of NL186223C publication Critical patent/NL186223C/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/26—Helical slow-wave structures; Adjustment therefor
NLAANVRAGE7602710,A 1953-03-27 PROCEDURE FOR PREPARING UNSATURATED CARBONIC ACIDS AND THE CATALYST PARTICLES TO BE USED HEREIN. NL186223C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1097419X 1953-03-27

Publications (1)

Publication Number Publication Date
NL186223C true NL186223C (en)

Family

ID=7722421

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7602710,A NL186223C (en) 1953-03-27 PROCEDURE FOR PREPARING UNSATURATED CARBONIC ACIDS AND THE CATALYST PARTICLES TO BE USED HEREIN.

Country Status (2)

Country Link
FR (2) FR1097419A (en)
NL (1) NL186223C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422265A2 (en) * 1976-09-21 1979-11-02 Thomson Csf Wave propagation tube with hyperfrequency delay line - having triangular section with three equally inclined flat plates and is supported in tube by bars

Also Published As

Publication number Publication date
FR1097419A (en) 1955-07-05
FR68260E (en) 1958-04-28

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