USD136380S - Design for a vacuum tube - Google Patents
Design for a vacuum tube Download PDFInfo
- Publication number
- USD136380S USD136380S US D136380 S USD136380 S US D136380S
- Authority
- US
- United States
- Prior art keywords
- vacuum tube
- design
- eitel
- mccullough
- calif
- Prior art date
Links
- 230000000630 rising Effects 0.000 description 1
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Description
p 1 1943- w. w. EITEL ETAL Des 136,380
VACUUM TUBE I-"ilad July 13, 1942 ENVENTORS dWLLMM w 51151.
BY A AEL OUGH THEIR AWORNE'Y J Patented Sept. 21, 1943 Des. 136,380
UNITED STATES PATENT OFFICE DESIGN FOR A VACUUM TUBE William W. Eitel, San Bruno, and Jack A.
McCullough, Millbrae, Calif., assignors to Eitel- McCullough, Inc., San Bruno, Calif., a corporation of California Application July 13, 1942, Serial No. 107,512
Term of patent 14 years The characterizing features of our design for the vacuum tube shown reside in the specific dome-shaped plate cap and conical supporting member rising therefrom and converging into the vertically disposed plate lead wire, all as illustrated.
We claim:
The ornamental design for a vacuum tube, substantially as shown and described.
WILLIAM W. EITEL. JACK A. MCCULLOUGH.
Family
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