|
US7185657B1
|
|
Method and device for treating gastroesophageal reflux disease
|
|
US1425203A
|
|
Safety device for mine cages
|
|
US1433459A
|
|
Mine cage
|
|
US1408088A
|
|
Feeding mechanism for mine cars
|
|
US1408089A
|
|
Tripping mechanism
|
|
US1372753A
|
|
Safety-horn block
|
|
US1364627A
|
|
Safety horn-block and tripping mechanism
|
|
US1333921A
|
|
Mine-shaft safety device
|
|
US1338225A
|
|
Car-check
|
|
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|
|
Automatic stopping and releasing device for mine-cars.
|
|
US1187151A
|
|
Car-retaining device for mine-cages.
|
|
US1066449A
|
|
Miner's emergency-case.
|
