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US Patent: 491,971
Coin controlled dice throwing machine
Patentees:
Percy G. Williams (exact or similar names) - Brooklyn, NY
Wilfred W. Roovers (exact or similar names) - Brooklyn, NY

USPTO Classifications:
194/276, 273/145R

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edwin H. Brown
C. R. Ferguson
Patent Dates:
Applied: Dec. 26, 1889
Granted: Feb. 14, 1893

Patent Pictures:
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