United States Patent 3127172
US Patent References:
Automatic pin-setting machine
- - 1468212
Bowling alley appliance
- - 2217256
Ball storage rack
- - 2796261
Multiple elevator conveyor employing radially movable projections
- - 2796970
Bowling ball lift mechanism
- - 3109649
Automatic pin-setting machine
- - 1468212
Bowling alley appliance
- - 2217256
Ball storage rack
- - 2796261
Multiple elevator conveyor employing radially movable projections
- - 2796970
Bowling ball lift mechanism
- - 3109649
Publication Date:
03/31/1964
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Primary Class:
Other Classes:
198/608, 198/443
International Classes:
A63D5/02; A63D5/00
Foreign References:
| GB867937A |