NL169858B - Werkwijze ter bereiding van zuiver, gekristalliseerd pyrofosforzuur. - Google Patents

Werkwijze ter bereiding van zuiver, gekristalliseerd pyrofosforzuur.

Info

Publication number
NL169858B
NL169858B NLAANVRAGE7201428,A NL169858DA NL169858B NL 169858 B NL169858 B NL 169858B NL 169858D A NL169858D A NL 169858DA NL 169858 B NL169858 B NL 169858B
Authority
NL
Netherlands
Prior art keywords
crystallized
pyrophosphoric acid
preparing pure
pure
preparing
Prior art date
Application number
NLAANVRAGE7201428,A
Other languages
English (en)
Dutch (nl)
Original Assignee
Hoechst Ag
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 NL169858B publication Critical patent/NL169858B/xx

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/32—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with means for connecting a hose
NLAANVRAGE7201428,A 1951-05-26 Werkwijze ter bereiding van zuiver, gekristalliseerd pyrofosforzuur. NL169858B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US228387A US2691791A (en) 1951-05-26 1951-05-26 Low height suction cleaner

Publications (1)

Publication Number Publication Date
NL169858B true NL169858B (nl)

Family

ID=22856979

Family Applications (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE7201428,A NL169858B (nl) 1951-05-26 Werkwijze ter bereiding van zuiver, gekristalliseerd pyrofosforzuur.
NL82097D NL82097C (fr) 1951-05-26

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL82097D NL82097C (fr) 1951-05-26

Country Status (6)

Country Link
US (1) US2691791A (fr)
BE (1) BE511655A (fr)
CH (1) CH302126A (fr)
FR (1) FR1063104A (fr)
GB (1) GB707348A (fr)
NL (2) NL82097C (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770000A (en) * 1953-09-03 1956-11-13 Hoover Co Suction cleaner having agitator drive in air stream and unobstructed fan inlet
US2980939A (en) * 1957-11-18 1961-04-25 Whirlpool Co Vacuum cleaner
DE1239448B (de) * 1958-08-04 1967-04-27 Andrea Giambertoni Bodenpflegegeraet mit eingebautem Staubsauger
US3678524A (en) * 1970-03-19 1972-07-25 Studebaker Corp Heavy duty vacuum cleaner
US3683448A (en) * 1970-06-03 1972-08-15 Nat Union Electric Corp Nozzle height adjusting mechanism for a suction cleaner
US3713185A (en) * 1971-03-29 1973-01-30 Singer Co Vacuum cleaner with nozzle height adjusting mechanism
US10188247B2 (en) * 2015-12-10 2019-01-29 Jiangsu Midea Cleaning Appliances Co., Ltd. Upright vacuum cleaner
US20180263441A1 (en) * 2015-12-10 2018-09-20 Jiangsu Midea Cleaning Appliances Co., Ltd. Floor brush assembly for upright vacuum cleaner and upright vacuum cleaner having same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1533806A (en) * 1922-11-11 1925-04-14 Hoover Co Vacuum cleaner
US1660331A (en) * 1922-12-04 1928-02-28 Walter A Frantz Suction cleaner
US2257555A (en) * 1937-10-20 1941-09-30 Hoover Co Suction cleaner
US2345623A (en) * 1940-03-25 1944-04-04 Eureka Vacuum Cleaner Co Vacuum cleaner
US2287911A (en) * 1940-04-29 1942-06-30 Hoover Co Suction cleaner
US2517670A (en) * 1944-09-16 1950-08-08 Hoover Co Converter attachment for suction cleaners
US2515554A (en) * 1947-07-15 1950-07-18 Freeman William Simon Rubber bathing cap
US2540178A (en) * 1947-11-05 1951-02-06 Singer Mfg Co Motor-driven fan unit for use in vacuum cleaners

Also Published As

Publication number Publication date
BE511655A (fr)
US2691791A (en) 1954-10-19
GB707348A (en) 1954-04-14
CH302126A (fr) 1954-10-15
NL82097C (fr)
FR1063104A (fr) 1954-04-29

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