BE574596A - Improvements to dust vacuum cleaners. - Google Patents

Improvements to dust vacuum cleaners.

Info

Publication number
BE574596A
BE574596A BE574596A BE574596A BE574596A BE 574596 A BE574596 A BE 574596A BE 574596 A BE574596 A BE 574596A BE 574596 A BE574596 A BE 574596A BE 574596 A BE574596 A BE 574596A
Authority
BE
Belgium
Prior art keywords
vacuum cleaners
dust vacuum
dust
cleaners
vacuum
Prior art date
Application number
BE574596A
Other languages
French (fr)
Inventor
C C Coons
W D Cropley
Original Assignee
Hoover Ltd
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 Hoover Ltd filed Critical Hoover Ltd
Publication of BE574596A publication Critical patent/BE574596A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G17/00—Refining of hydrocarbon oils in the absence of hydrogen, with acids, acid-forming compounds or acid-containing liquids, e.g. acid sludge
    • C10G17/02—Refining of hydrocarbon oils in the absence of hydrogen, with acids, acid-forming compounds or acid-containing liquids, e.g. acid sludge with acids or acid-containing liquids, e.g. acid sludge
    • C10G17/04—Liquid-liquid treatment forming two immiscible phases
    • C10G17/06—Liquid-liquid treatment forming two immiscible phases using acids derived from sulfur or acid sludge thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
BE574596A 1958-01-10 1959-01-09 Improvements to dust vacuum cleaners. BE574596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US574596XA 1958-01-10 1958-01-10

Publications (1)

Publication Number Publication Date
BE574596A true BE574596A (en) 1959-05-02

Family

ID=22010662

Family Applications (1)

Application Number Title Priority Date Filing Date
BE574596A BE574596A (en) 1958-01-10 1959-01-09 Improvements to dust vacuum cleaners.

Country Status (2)

Country Link
BE (1) BE574596A (en)
FR (1) FR574596A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078233B (en) * 1957-01-07 1960-03-24 Stettner & Co Control capacitor with constant capacity and adjustable temperature value

Also Published As

Publication number Publication date
FR574596A (en) 1924-07-16

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