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Electrical Hardware Patents 47 files found on 6 pages.
Displaying 8 files per page.
Gateway > Patent Archive > Electrical Hardware Patents > Page 4  
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000418426

FRANK THONE
INCANDESCENT ELECTRIC LAMP SOCKET
Patented 12/31/1889

Hits: 2933

000421802

JOHN F. WOLLENSAK
FLEXIBLE ELECTRIC CONNECTION
Patented 02/18/1890

Hits: 2793

000434153

PHILIP LANGE
INCANDESCENT LAMP SOCKET
WESTINGHOUSE ELECTRIC COMPANY
Patented 08/12/1890

Hits: 3570

000438310

THOMAS A. EDISON
LAMP BASE
Patented 10/14/1890

Hits: 2994

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000439365

ALFRED SWAN
INCANDESCENT LAMP SOCKET
INSULITE MANUFACTURING COMPANY
Patented 10/28/1890

Hits: 3827

000439366

ALFRED SWAN
INCANDESCENT ELECTRIC LAMP SOCKET
INSULITE MANUFACTURING COMPANY
Patented 10/28/1890

Hits: 3811

000439367

ALFRED SWAN
INCANDESCENT ELECTRIC LAMP SOCKET
INSULITE MANUFACTURING COMPANY
Patented 10/28/1890

Hits: 3887

000456327

WALTER FRANCIS SMITH
CUT-OUT FOR ELECTRIC LAMPS
UNITED GAS IMPROVEMENT COMPANY
Patented 07/21/1891

Hits: 3574

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