NL172651C - PROCESS FOR PREPARING AMPHOLYTIC FLUORALIPHATIC SURFACE ACTIVE COMPOUNDS, AS WELL AS ALKALINE Aqueous CONCENTRATES, CONTAINING SUCH COMPOUND. - Google Patents

PROCESS FOR PREPARING AMPHOLYTIC FLUORALIPHATIC SURFACE ACTIVE COMPOUNDS, AS WELL AS ALKALINE Aqueous CONCENTRATES, CONTAINING SUCH COMPOUND.

Info

Publication number
NL172651C
NL172651C NLAANVRAGE7200241,A NL172651DA NL172651C NL 172651 C NL172651 C NL 172651C NL 172651D A NL172651D A NL 172651DA NL 172651 C NL172651 C NL 172651C
Authority
NL
Netherlands
Prior art keywords
fluoraliphatic
ampholytic
preparing
compound
well
Prior art date
Application number
NLAANVRAGE7200241,A
Other languages
Dutch (nl)
Original Assignee
Minnesota Mining & Mfg
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 NL172651C publication Critical patent/NL172651C/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/02—Contacts; Wipers; Connections thereto
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Contacts (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
NLAANVRAGE7200241,A 1951-09-27 PROCESS FOR PREPARING AMPHOLYTIC FLUORALIPHATIC SURFACE ACTIVE COMPOUNDS, AS WELL AS ALKALINE Aqueous CONCENTRATES, CONTAINING SUCH COMPOUND. NL172651C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2740870X 1951-09-27

Publications (1)

Publication Number Publication Date
NL172651C true NL172651C (en)

Family

ID=4571412

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7200241,A NL172651C (en) 1951-09-27 PROCESS FOR PREPARING AMPHOLYTIC FLUORALIPHATIC SURFACE ACTIVE COMPOUNDS, AS WELL AS ALKALINE Aqueous CONCENTRATES, CONTAINING SUCH COMPOUND.

Country Status (6)

Country Link
US (1) US2740870A (en)
BE (1) BE514232A (en)
CH (1) CH299543A (en)
DE (1) DE928297C (en)
FR (1) FR1063417A (en)
NL (1) NL172651C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902549A (en) * 1956-08-31 1959-09-01 Executone Inf Sys Inc Multiple unit pile-up switch
US3196225A (en) * 1961-04-13 1965-07-20 Gen Motors Corp Rotary interrupter switch
US3316513A (en) * 1966-01-03 1967-04-25 Bell Telephone Labor Inc Sealed contact reed switch having contoured reeds

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US589582A (en) * 1897-09-07 Thur w
US1216420A (en) * 1914-12-01 1917-02-20 Gen Railway Signal Co Relay.
US1394087A (en) * 1918-05-17 1921-10-18 W N Matthews And Brother Inc Cut-out switch
BE396738A (en) * 1931-02-25
US2341931A (en) * 1941-04-24 1944-02-15 Gen Electric Circuit maker and breaker
US2499420A (en) * 1946-02-19 1950-03-07 Michael J Sakatos Nonsparking switch
FR928855A (en) * 1946-05-07 1947-12-10 Diffusions Modernes Telephone relay

Also Published As

Publication number Publication date
CH299543A (en) 1954-06-15
BE514232A (en)
US2740870A (en) 1956-04-03
DE928297C (en) 1955-05-31
FR1063417A (en) 1954-05-03

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