USD28931S - Design for an incandescent-lam p bulb - Google Patents
Design for an incandescent-lam p bulb Download PDFInfo
- Publication number
- USD28931S USD28931S US D28931 S USD28931 S US D28931S
- Authority
- US
- United States
- Prior art keywords
- design
- incandescent
- bulb
- lam
- lister
- Prior art date
Links
- 210000003414 Extremities Anatomy 0.000 description 1
- 210000001364 Upper Extremity Anatomy 0.000 description 1
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Description
AU 291 EX OR D 280931 DESIGN.
J. T. LISTER.
INGANDESGENT LAMP BULB.
,931. Patented June 28,1898.
UNITED STATES PATENT OFFICE.
JOHN THOMAS LISTER, OF CLEVELAND, OIIIO.
DESIGN FOR AN INCANDESCENT-LAMP BULB.
lie it known that I, JOHN TIIUIIIAS LISTER, a citizen of the United States of America, and a resident of Cleveland, county of Cuyahoga, State of Ohio, have invented a certain new and useful Design for Incandescent-Lamp Bulbs, of which the following is a specificatiou.
Figure I is a vertical section of a bulb, showing my design. Fig. 2 is a plan VlQW of the same. Fig. 2] is a plan View showing neck in section on line X K, Fig. 1.
As shown in the drawings, the leading or material feature of my design consists of a i-ylindrical body A, provided with hemispherieal extremities l3 B. At the upper extremity the neck C is inserted centrally and joined to the hemispherical portion by means of curves
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