Title:
Operator's skill compensating amusement device
United States Patent 2872193
US Patent References:
/1876469.html
- - 1876469

Game board
- - 1894469

Amusement apparatus
- - 2187422

Amusement apparatus
- - 2513728

Angularly adjustable ball bumper
- - 2642290


Inventors:
Sanborn, Hamilton
Publication Date:
02/03/1959
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Assignee:
Sanborn, Hamilton
Primary Class:
273/119A
Other Classes:
273/129R
International Classes:
A63F7/00
US Patent References:
2658755Shiftable ball rolling board and control therefor
2826828Variable difficulty devices
Foreign References:
FR795633A
FR821908A