Method and apparatus for introducing foreign substances into vacuum tube lights

Title:

Method and apparatus for introducing foreign substances into vacuum tube lights

United States Patent 1826383

Inventors:

Smalley, Robert C.

Application Number:

US10589426A

Publication Date:

10/06/1931

Filing Date:

05/01/1926

Export Citation:

Assignee:

CLAUDE NEON LIGHTS INC

Primary Class:

53/432

Other Classes:

53/467, 53/473, 53/484, 53/DIG.3, 141/7, 141/118, 141/319, 188/106R, 445/43

International Classes:

H01J9/395

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