NL28920C - - Google Patents

Info

Publication number
NL28920C
NL28920C NL28920DA NL28920C NL 28920 C NL28920 C NL 28920C NL 28920D A NL28920D A NL 28920DA NL 28920 C NL28920 C NL 28920C
Authority
NL
Netherlands
Application number
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 NL28920C publication Critical patent/NL28920C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/668—Means for obtaining or monitoring the vacuum
NL28920D 1928-05-19 NL28920C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US279154A US1731866A (en) 1928-05-19 1928-05-19 Circuit-controlling system

Publications (1)

Publication Number Publication Date
NL28920C true NL28920C (enrdf_load_html_response)

Family

ID=23067861

Family Applications (1)

Application Number Title Priority Date Filing Date
NL28920D NL28920C (enrdf_load_html_response) 1928-05-19

Country Status (4)

Country Link
US (1) US1731866A (enrdf_load_html_response)
BE (2) BE360836A (enrdf_load_html_response)
GB (1) GB312084A (enrdf_load_html_response)
NL (1) NL28920C (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7499255B2 (en) * 2006-01-31 2009-03-03 Thomas & Betts International, Inc. Vacuum-type electrical switching apparatus
ITMI20071511A1 (it) * 2007-07-26 2009-01-27 Elettrotec Srl "vuotostato elettronico con parametri principali settabili rapidamente anche durante il funzionamento dell'impianto sotto controllo"

Also Published As

Publication number Publication date
BE283147A (enrdf_load_html_response)
BE360836A (enrdf_load_html_response)
US1731866A (en) 1929-10-15
GB312084A (en) 1930-10-17

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