Code game
United States Patent 3287825
US Patent References:
/0014129.html
- - 0014129
Color print viewable by lights of different colors and process of making the same
- - 1422527
Magnetic compass
- - 2529764
Writing instrument
- - 2676570
Combination pen and time piece
- - 2718749
/0014129.html
- - 0014129
Color print viewable by lights of different colors and process of making the same
- - 1422527
Magnetic compass
- - 2529764
Writing instrument
- - 2676570
Combination pen and time piece
- - 2718749
Inventors:
Ryan, John W.
Sloop, Conrad B.
Sloop, Conrad B.
Publication Date:
11/29/1966
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Export Citation:
Assignee:
Ryan, John W.
Sloop, Conrad B.
Sloop, Conrad B.
Primary Class:
Other Classes:
359/885
International Classes:
A63F9/00
US Patent References: