FR557457A - Improvements to electrical control devices - Google Patents

Improvements to electrical control devices

Info

Publication number
FR557457A
FR557457A FR557457DA FR557457A FR 557457 A FR557457 A FR 557457A FR 557457D A FR557457D A FR 557457DA FR 557457 A FR557457 A FR 557457A
Authority
FR
France
Prior art keywords
control devices
electrical control
electrical
devices
control
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sullivan Machinery Co
Original Assignee
Sullivan Machinery Co
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 Sullivan Machinery Co filed Critical Sullivan Machinery Co
Application granted granted Critical
Publication of FR557457A publication Critical patent/FR557457A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
FR557457D 1921-11-25 1922-10-16 Improvements to electrical control devices Expired FR557457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US557457XA 1921-11-25 1921-11-25

Publications (1)

Publication Number Publication Date
FR557457A true FR557457A (en) 1923-08-09

Family

ID=21999881

Family Applications (1)

Application Number Title Priority Date Filing Date
FR557457D Expired FR557457A (en) 1921-11-25 1922-10-16 Improvements to electrical control devices

Country Status (1)

Country Link
FR (1) FR557457A (en)

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