NL140220B - PROCESS FOR MANUFACTURE OF AN ARTICLE FROM A WATER-HARDENED MASS, AND OBJECT THEREOF. - Google Patents

PROCESS FOR MANUFACTURE OF AN ARTICLE FROM A WATER-HARDENED MASS, AND OBJECT THEREOF.

Info

Publication number
NL140220B
NL140220B NL676711139A NL140220DA NL140220B NL 140220 B NL140220 B NL 140220B NL 676711139 A NL676711139 A NL 676711139A NL 140220D A NL140220D A NL 140220DA NL 140220 B NL140220 B NL 140220B
Authority
NL
Netherlands
Prior art keywords
article
manufacture
water
hardened mass
hardened
Prior art date
Application number
NL676711139A
Other languages
Dutch (nl)
Original Assignee
Shell Int Research
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 NL140220B publication Critical patent/NL140220B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/22—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being vacuum tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube
NL676711139A 1947-05-10 PROCESS FOR MANUFACTURE OF AN ARTICLE FROM A WATER-HARDENED MASS, AND OBJECT THEREOF. NL140220B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US747214A US2474261A (en) 1947-05-10 1947-05-10 Modulator

Publications (1)

Publication Number Publication Date
NL140220B true NL140220B (en)

Family

ID=25004131

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676711139A NL140220B (en) 1947-05-10 PROCESS FOR MANUFACTURE OF AN ARTICLE FROM A WATER-HARDENED MASS, AND OBJECT THEREOF.

Country Status (4)

Country Link
US (1) US2474261A (en)
BE (1) BE483044A (en)
FR (1) FR966138A (en)
NL (1) NL140220B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE486127A (en) * 1947-12-03
US2636941A (en) * 1950-04-25 1953-04-28 Westinghouse Electric Corp Frequency shift keying circuits
US2667536A (en) * 1951-08-07 1954-01-26 Bell Telephone Labor Inc Carrier telegraph system
US2716218A (en) * 1952-06-06 1955-08-23 Rca Corp Frequency variation circuit
BE525820A (en) * 1953-01-19
US2906960A (en) * 1953-09-05 1959-09-29 Estey Organ Corp Electrical musical instrument with frequency divider circuit
GB756060A (en) * 1953-09-10 1956-08-29 Vickers Electrical Co Ltd Improvements relating to modulating circuits for electric oscillators
US2874216A (en) * 1953-10-27 1959-02-17 Gen Electric Automatic signal control system
US2802937A (en) * 1954-05-05 1957-08-13 Bell Telephone Labor Inc Teletypewriter station network including mobile station

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1831933A (en) * 1929-04-18 1931-11-17 Wired Radio Inc Frequency modulation system
US1950759A (en) * 1931-05-25 1934-03-13 Frederick E Terman Variable reactance circuit
US2382198A (en) * 1942-05-16 1945-08-14 Rca Corp Oscillator stabilizing circuit
US2394427A (en) * 1942-11-09 1946-02-05 Rca Corp Wave length modulation

Also Published As

Publication number Publication date
US2474261A (en) 1949-06-28
BE483044A (en)
FR966138A (en) 1950-09-30

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