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US1393357A - Electric lighting apparatus - Google Patents

Electric lighting apparatus Download PDF

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Publication number
US1393357A
US1393357A US263904A US26390418A US1393357A US 1393357 A US1393357 A US 1393357A US 263904 A US263904 A US 263904A US 26390418 A US26390418 A US 26390418A US 1393357 A US1393357 A US 1393357A
Authority
US
United States
Prior art keywords
lighting apparatus
electric lighting
electric
lighting
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 - Lifetime
Application number
US263904A
Inventor
John H George
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.)
ELLSWORTH A HAWTHORNE
Original Assignee
ELLSWORTH A HAWTHORNE
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
Priority claimed from US222975A external-priority patent/US1390201A/en
Application filed by ELLSWORTH A HAWTHORNE filed Critical ELLSWORTH A HAWTHORNE
Priority to US263904A priority Critical patent/US1393357A/en
Application granted granted Critical
Publication of US1393357A publication Critical patent/US1393357A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Forging (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Description

US263904A 1918-03-16 1918-11-23 Electric lighting apparatus Expired - Lifetime US1393357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US263904A US1393357A (en) 1918-03-16 1918-11-23 Electric lighting apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US222975A US1390201A (en) 1918-03-16 1918-03-16 Electric-lighting apparatus
US263904A US1393357A (en) 1918-03-16 1918-11-23 Electric lighting apparatus

Publications (1)

Publication Number Publication Date
US1393357A true US1393357A (en) 1921-10-11

Family

ID=26917312

Family Applications (1)

Application Number Title Priority Date Filing Date
US263904A Expired - Lifetime US1393357A (en) 1918-03-16 1918-11-23 Electric lighting apparatus

Country Status (1)

Country Link
US (1) US1393357A (en)

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