research
 Patents
 Books
 Literature
 Articles
 Timeline
 Auction Archive

about
 About this site
 Wanted to buy

bulb gallery

Incandescent:
C
carbon
WD
drawn tungsten
WC
coiled tungsten
WM
mini tungsten
WS
pressed tung.
FG
figural bulbs
XL
christmas
XS
christmas sets
T
tantalum

Discharge:
HE
helium lamps
NE neon lamps
AR
argon lamps
XE
xenon lamps
MA
mercury
MC
fluorescent
MS
special mercury

Hardware:
F
fuses
FX
fixtures
PF
plugs & fittings
SA
sockets
SW
switches

tube gallery

 X-ray
 Geissler
 Crookes
 Radio
 Box art

collector
profiles

Dr. Hugh Hicks
S.Slabyhoudek
M-Jay

Fort Myers, FL.
Monsieur Ara
Fin Stewart

links

 Related links
 Submit a link

 


Gas Discharge Lamp Patents 104 files found on 13 pages.
Displaying 8 files per page.
Gateway > Patent Archive > Gas Discharge Lamp Patents > Page 5  
[Sort: name hits]   [Thumbs/Page: 8 12 16]   
Subcategories 
Design Patents (6)
Click to viewClick to viewClick to viewClick to view
001905697

HEINRICH FRIEDRICHSEN
POLARITY INDICATOR
GENERAL ELECTRIC COMPANY
Patented 04/25/1933

Hits: 1998

001912146

JOHN B. JOHNSON
GLOW DISCHARGE DEVICE
BELL TELEPHONE LABORATORIES
Patented 05/30/1933

Hits: 1772

001925693

FRANK GRAY
GLOW DISCHARGE LAMP
BELL TELEPHONE LABORATORIES
Patented 09/05/1933

Hits: 1891

001926889

HOWARD W. WEINHART
GLOW DISCHARGE LAMP
BELL TELEPHONE LABORATORIES
Patented 09/12/1933

Hits: 1820

Click to viewClick to viewClick to viewClick to view
001928407

JOHN C. BATCHELOR
LUMINOUS SIGN
RADIO CORPORATION OF AMERICA
Patented 09/26/1933

Hits: 1815

001938538

ANDREW F. HENNINGER JR.
NEGATIVE GLOW SYSTEM FOR CREATING ILLUSION OF MOTION
Patented 12/05/1933

Hits: 3421

001940630

STUART F. MARVIN, PHILIP J. KAYATT
GLOW LAMP
RADIO INVENTIONS, INC.
Patented 12/19/1933

Hits: 1634

001944929

LEE DEFOREST
GASEOUS DISCHARGE DEVICE
GENERAL TALKING PICTURES CORPORATION
Patented 01/30/1934

Hits: 1732

[<<] Prev 1 2 3 4 (5) 6 7 8 9 10 11 Next [>>]