|
US2559369A
|
|
Transfer mechanism
|
|
US2367887A
|
|
Boring and milling machine
|
|
US2242293A
|
|
Screw tapping machine
|
|
US2188941A
|
|
Multiple spindle boring mechanism
|
|
US2195026A
|
|
Boring device
|
|
US1771847A
|
|
Airplane
|
|
US1887216A
|
|
Assembly machine
|
|
US1793259A
|
|
Tap holder
|
|
US1793239A
|
|
Multiple-spindle drilling machine
|
|
US1750684A
|
|
Hydraulic feed mechanism for drilling machines
|
|
US1799812A
|
|
Multiple drill
|
|
GB195893A
|
|
Improvements in production of wheels
|
|
US1530593A
|
|
Apparatus for countersinking
|
|
US1485158A
|
|
Gear
|
|
US1477851A
|
|
Multiple-spindle drill
|
|
US1497295A
|
|
Demountable rim for vehicle wheels
|
|
US1500496A
|
|
Production of wheels
|
|
US1400829A
|
|
Production of connecting-rods and similar machine parts
|
|
US1371214A
|
|
Production of gears
|
|
US1366044A
|
|
Multiple-drill machine
|
