Apparatus for skywriting
United States Patent 3089271
US Patent References:
Method and apparatus for forming letters and symbols in the air
- - 1716794
Apparatus for sky writing
- - 1986942
Column for sky writing
- - 2065024
Method and apparatus for forming letters and symbols in the air
- - 1716794
Apparatus for sky writing
- - 1986942
Column for sky writing
- - 2065024
Inventors:
Copeland, Gordon R.
Publication Date:
05/14/1963
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Assignee:
Dorothy, Copeland B.
Primary Class:
International Classes:
G09F21/16; G09F21/00